Agile V. Waterfall

Agile V. Waterfall
Waterfall to Agile References Pavolka, R., Mount, V., Neymeyr, A., & Rhodes, C. From
Waterfall to Rapid Prototyping (2005). Supporting Enterprise–wide Adoption of the Oncourse
Collaboration and Learning (CL) Environment at Indiana University. SIGUCCS '05 Proceedings of
33rd Annual ACM SIGUCCS Fall Conference, 312 – 319. Northrop, Robert (2004). The Fall of
Waterfall. Intelligent Enterprise 7.3, 40–41. Adams, John (2013). Change in Software Techniques
Helps FHLB Reduce Defects. American Banker, Technology Section, Volume 178 No. 23. I. Agile
v. Waterfall Agile Development Methods (Agile) and the Waterfall Method (Waterfall) are two
different styles of designing and managing the Soft Development Life–Cycle (SDLC) ... Show more
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Implementation is very simply put the execution of the requirements in the design specifications
document. During this phase, developers actually write the code that makes the software system
work. Hardware specialists similarly setup the equipment and hardware that are necessary for the
solution. The application is developed, debugged and tested against the design document and once it
passes muster, the product is handed off to the next phase: testing. Testing is often handled by a
quality assurance team. The team upon taking delivery of the product refers back to the documents
created during conception and ensures that all of the requirements are satisfied by the solution. This
team documents the project and uses business cases or test cases to determine whether the solution
actually is the complete solution and whether or not it actually works in its entirety. This team
generally hands off the functioning solution, its documentation and a user manual to the next phase:
installation. An installation or delivery team then hands the product over to the customer. This team
also often provides formal training to the end–user. Delivery is followed by maintenance.
Maintenance of a product usually includes end–user support, debugging of system flaws that are
discovered after delivery, and change requests. If Waterfall is executed to the letter of its design,
there will be no overlap between the separate phases of the project. Clearly defined
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The Waterfall Method And Source Code
The Waterfall method uses documentation at the onset of the project that clearly defines the software
requirements. The creation of the documentation and source code usually takes a significant amount
of time. This time consuming process is usually circumvented when using an Agile approach
(Arken, 2008). The process, however time consuming, is also extremely important. By clearly
defining the goals and objectives of the project, stakeholders like the customers and developers are
on the same page at the start. Another clear benefit to having documentation of project requirements
is realized whenever there is a change of personnel during the project lifetime. The creation of
documentation helps prevent project failure if one or ... Show more content on Helpwriting.net ...
By providing working iterations of code to stakeholders several times over the course of a projects
life, changes are requested and the code is altered on–demand; this can help prevent project failure.
Customer–oriented Development
To this point, one stark contrast between the Waterfall and Agile methods of software development
is the degree to which they involve the customer. In this sense it is easier to think of the Waterfall
model as being more "predictive" and the Agile model as being more "adaptive". There are
milestones in either case, but the changes that are a result of customer input drive the flow of
development in an Agile system (Arken 2008). One can see how the "adaptive vs. predictive"
differences can become more of a problem where finances are concerned.
Project Management
Looking at each methodology from a different perspective, the management perspective, unveils
additional benefits and setbacks. The rigidity of the Waterfall method for software development can
be cumbersome when dealing with changing expectations, but it makes it easier for management to
manage the project's progression. Having clear goals makes it easy for managers to track the
development process. It is more difficult to track a project where requirements are constantly
evolving. Most of the projects (not involving software development) in our department are tracked
through their process. As goals are achieved, completion nears 100%.

Software Development Lifecycle Models And The Waterfall Model
In a paper titled "Software Development Lifecycle Models", Nayan B. Ruparelia describes many of
the different options when developing software including the Waterfall model. The Waterfall model
was one of the first true models documented for software development and "has underpinned all
other models" (Ruparelia 2010) since inception. Originally developed by Herbert Benington in 1956
and later adjusted by Winston Royce in 1970 (Ruparelia 2010), the Waterfall method became an
important and widely used process to get software into the workplace. The model follows a pattern
of evaluation, requirements, analysis, design, development, validation, and deployment. Royce's
model also allowed for "iterative feedback" (Ruparelia 2010) that allowed a group to move to a
preceding step if feedback was needed. One of the key tenants of the Waterfall method is heavy
planning and documenting with a key goal of minimizing risk during coding. Also, collaboration is
low across phases as each group in a phase would play a different part in terms of requirements and
validation. Traditionally, the Waterfall model is used to develop large and complex software rollouts
that require different experience levels and backgrounds to accomplish the overarching goal. Once
the software is coded and deployed, the documentation allows for better understanding of what took
place if a process needed to be revisited. Other variations of the Waterfall model have been
documented but the original version is

The Original Waterfall Model Has A Foundation That Is...
The original Waterfall model has a foundation that is supported by two distinct characteristics. First,
the methodology is rooted in the fact that that the software be developed in stages. "Originally
created by Benington in 1956 and later modified by Royce in 1970, the quintessential Waterfall
model is linear and sequential in evolution, typically with milestones at each phase of development.
(Pavolka, 2005). As seen in figure 1 (Ruparelia, May 2010), the typical thresholds consisted of
Evaluation, Requirements, Analysis, Design, Development, Validation, and ultimately Deployment.
The evaluation phase, at the aggregate level, helps to reveal the situation at hand. The requirements
phase is arguably the most important phase of the Waterfall plan as it lays out the project statement
and sets the framework and expectations for the project. The next phase, Analysis, works as a
comparison between what capabilities are needed versus what constraints currently exist. That leads
into the Design phase in which the software developers determine the architecture required to meet
the customer's expectations taking into account the constraints previously identified. Development is
the next phase that takes the inputs from the Design phase and outputs a tangible product ready for
testing. The testing or Validation phase is the process in which the software is checked for two
things: a) any and all bugs are identified and removed and b) the original scope of work including all

The Advantages And Disadvantages Of The Waterfall Model
Waterfall Model
What is the Waterfall Model?
The acronym (SDLC) which stands for System Development Life Cycle was the earliest to be used
for system development and it is called "The Waterfall Model". It can also be called as the "Linear–
Sequential Life Cycle Model". The waterfall model illustrates software development process in a
liner sequential flow. If the previous phase is completed, the development process shall begin. The
progression in the waterfall model is seen as flowing gradually downwards through the phases as all
these phases are arrange in a series or sequence to each other. The firstly phase should be finished
before continuing to the following phase and the next phase will only start later at the specified
allocated of goals ... Show more content on Helpwriting.net ...
The models are used in highly builded physical environments in which changes after the
implementation are very expensive, if it is not difficult to deal with. Since it was first used in
physical processes, one after another when software was not abundant, the waterfall model was only
later modified for software development.
How are ideas presented in a waterfall model?
Since the waterfall model is very straightforward and understandable and it follows a step–by–step
procedure, ideas are presented in a specific manner. The users of the model focus on only merely
idea at a time and follow the waterfall model's phases and will carry on to the next set of ideas for
specified phases. As said in the other component of the research, the users of this model cannot
proceed unless the stage in focus is finished.
Why is the waterfall model important?
The waterfall model is crucial because it can easily help the users and developers to understand the
sequential procedure in development. Since it shows the processes in a cascaded format, each
process is easily recognized by anyone who looks at its

Advantages Of Waterfall Methodology
Christine McKay
CMGT410
October 23, 2017
Week 5 – Final The waterfall methodology is one of the most prominently recognized and most
utilized methods in project management. Whether you're using the waterfall methodology to manage
a project or in some other fashion, let's say for example, in software development, it works the same
in producing a product – in a sequential manner and design, and in a series of stages that follow each
other one after another. This means, once a person completes one step they move onto the next step
and not before. As this process is sequential, once a step has been completed, the person cannot go
back to a previous step – not without scratching the whole project and starting from the beginning.
There's no room for change or error, so a project outcome and an extensive plan must be set in the
beginning and then followed carefully. The Agile project management approach, also referenced by
the Agile ... Show more content on Helpwriting.net ...
The disadvantages of the waterfall methodology we're, in essence, "resolved" by implementing an
incremental approach, with the introduction of the Agile methodology approach. The Agile approach
introduced a much more simplistic design that included modules broken down into prioritized
"sprints". These sprints were recognized as a benefit to many project management teams as they
allowed project managers the ability to perform enhanced evaluations on a much more frequent
basis. This also provides increased opportunities for the discovery of bugs and customer feedback as
completed phases are rolled out. One of the biggest disadvantages to the utilizing the Agile
methodology is not having a clear and concise project deadline, the projects end result and
budgetary confinements can vary greatly and the end result can be grossly different than what the
original scoping plan had planned intended it to

Analysis Of Waterfall And Agile Brief Introduction
been applying variety of methods to software developing field. Up to this day, we are still trying to
cross the river by feeling the stones. Where is the solution? What is the best method? The fact is that
at the professional workplace, both methods are implemented based on clients' needs and client's
requirements. I will examine the two methods, compare those two methods from variety of aspects. I
will compare the methodology to professional work experience and to seek improvements based on
the articles I read and personal previous experience. Parallel comparison will be applied throughout
the text to provide readers a transparency and more unblemished theoretical understanding from the
methodology based on experimental trajectory. Waterfall and Agile Brief Introduction Waterfall
method is one of the traditional software developing method that has been implementing for
decades. Usually, clients have requests, then software developers create an initial paln; after client
approves the plan, developers follow through the plan; at the end, developers test and finish the task.
Upon clients' additional requests or tests, developers add up the extra features, but in most of the
case, it would be too late or too hard to change. The entire process is not very communicative or
translucent since clients and developers generally meet just once or twice throughout the project. In
the article Why Making Software is so Difficult the author mentioned that software production is
very

Agile Vs Waterfall Case Study
ASSIGNMENT #9(AGILE VS WATERFALL) MICHELLE WICHMAN DUE DATE: 21JUN2015
POINTS POSSIBLE: 100 OVERVIEW: Hy–Vee Corporate headquarters is based in West Des
Moines and is an employee–owned supermarket. As of 2015, Hy–Vee has 233 stores across eight
Midwestern states and $6.9B in annual revenue. In this paper, I'll be comparing Agile vs Waterfall or
traditional software development methods. First, let's take a look at Agile, in particular the role of
scope. Several traditional software development models came about in the 1960s, such as
incremental, spiral and waterfall modelling. Over time it was realized that the software development
team did not realize all of the needs up front. Thus, the customer was was not delivered what was
expected. It's essential to have an outline of who, what, when and where but this is often a
transforming list. Thus, Agile came into play. This is a faster and smaller method over traditional.
Stakeholders get together with small teams to look at cost, resources and expected time frames. This
team figures out the computer verbiage, checks and balances, verification coding, iterations, number
limits, scripts, all in the early stages of development. When a large and ... Show more content on
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This is a much better approach than having to predetermine what the executives may want. My
experience with the executives is that a lot of times they are not sure what they want it takes several
tweaking and re–programming to get it just right. What's cool about this method is that the strengths
of different programmers can be best utilized. Furthermore, all programmers can work on their
pieces at the same time, get feedback, tweak it some more, get feedback all simultaneously which
will be much quicker and efficient than if it was the Waterfall method. The stakeholder's needs take
a priority with an iterative

Design Process : The Waterfall Model Essay
The Waterfall approach to design is an ordered design process used in software development where
progress is seen moving at a steady pace in a downward flow through the various stages of
development. The downward flowing nature of this design process is the impetus for its naming
convention. The Waterfall model is a hardware–oriented model which was adapted for use as a
software development methodology. The various stages of the Waterfall design method would
include conception, initiation, analysis, design, construction, testing, implementation, and
maintenance. System and software requirements are captured in the conception stage. Models and
rules are determined during analysis, and software architecture is produced during the design stage.
Software integration and coding surface within the construction phase. Defect debugging occurs
while testing, and installation, support, and maintenance are the ending step in the process. The
Waterfall model suggests that movement to the next phase in the process should only take place
after the preceding phase has been reviewed and verified. Modified waterfall models might include
variations of this theory. Variations could include returning to the prior cycle after finding a flaw, or
going back to the design phase if necessary.
Agile Software development addresses principles of software development in which requirements
and solutions manifest through collaborative efforts and cross–functional teams. Agile development

Compare And Contrast The Waterfall And Agile Method Of...
1. Introduction For this paper, I will be comparing the Waterfall and Agile methods of software
development. The primary articles used for citations will be from "Agile for millennials: a
comparative study" and "The Waterfall That Won't Go Away" with supplementing citations from
"Hybrid Software and System Development in Practice: Waterfall, Scrum, and Beyond." 2.
Definition The Waterfall and Agile methods are amongst some of the most popular methods of
software development. The Waterfall method is essentially a sequential approach for software
development. At each stage of a project, the all tasks and goals need to be completed before moving
to the next stage with the goal of reducing error. The first signs of the Waterfall method ... Show
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Both articles also suggest that education is avkey issue on the eventual adoption of the Agile and
hybrid methodologies. Chatterjee suggests that hybrid approaches need to be slowly introduced in
the workplace with the software development culture embracing the Agile method. Missiroli, Russo
and Ciancarini suggest education as the root approach to make this change. However, it is evident
that both methods are necessary. In fact, in the article "Hybrid Software and System Development in
Practice: Waterfall, Scrum and Beyond", the hybrid "Water–Scrum–Fall" method is tested. The
study found that it is in fact a widely used practice, regardless of company size, industry and other
external practices. Although it is still being tested with a larger population, early conclusions suggest
that the hybrid method is the best approach (Kuhrmann, et al., 2017, pp. 30, 38–39). Therefore, each
organization should focus on education with both methods and adopt some level of a hybrid method.
The next question is if there is a formal development strategy that could be widely adopted or if both
methodologies should be assessed on a case–by–case basis and at different degree of granularity. 5.
Application to my current

Experimentation Methodology : Waterfall Methodology For...
Prologue Experimentation Methodology is a way of arriving at solutions to the problems at hand by
actioning the solution in a controlled/miniature environment. The controlled environment contains
the actual information or data, which will be used in our 'trial and error' scrutinising and subsequent
solutioning. This methodology is one of the widely used methods where the size and cost of the
actual project is very high. This greatly helps in reducing the cost in case of errors, since we are
working only on a miniaturised simulated environment. From the IT project perspective, this
method is used by various IT consultancies in the name of 'pilot project'. Software Development
Methodology– Overview: Many of the software companies adopt waterfall methodology for their
project. Waterfall methodology follows the below steps: 1. Requirement gathering 2. Designing 3.
Testing 4. Implementation 5. Verification 6. Maintenance Before proceeding with the development
of objects with this methodology, consultants prefer to establish their solutions in a pilot
environment and then start working on the actual project provided the pilot is successful and
approved. We can extensively analyse and scrutinise the advantages, disadvantages and various
aspects of the methodology in subsequently sections of this report. Experimentation methodology:
Experimentation normally points to the ways and means of testing the solutions fabricated by the
team members and do proper testing before

Wells Fargo Waterfall Approach
Written off as a dying approach to software engineering I found that the Waterfall approach process
was in fact alive and largely in use according to a Queue opinion article (Neill, 2004). While
surveying professionals for the article in Queue, the Waterfall approach was reported to be in use by
a third of the professionals that responded to the survey (Neill, 2004). I could not help but wonder if
the Waterfall approach was some sort of zombie process that was back from being presumed dead,
or if the method was being used for convenience purposes. Before I would be able to answer these
questions for myself I would have to look into why these presumptions were made in the first place.
The rigid methods employed by the Waterfall approach makes it easy to manage because the team
cannot move onto the next stage if all of the ... Show more content on Helpwriting.net ...
When a system update is going directly to Wells Fargo's consumer an Agile method should be
considered. Such an approach is being used for the redesign of Wells Fargo's consumer website,
which now allows consumers to use a beta version. This allows consumers to interact with the new
software and provide feedback. This feedback can be used to overhaul the changes made to the
website. For software that directly effects consumer, I would believe having the ability to change
aspects of the build would be vital as every consumer's needs are different. These types of problems
would not be as well defined due to the vast needs of every consumer. The development of software
used in ATMs may need to be overhauled due to a system issue that does not properly work for
those that have vision impairment. The whole project cannot be scrapped due to one issue that was
overlooked. This overlook would be far costlier in a Waterfall method development than in an Agile
method. Not only would the cost be great the time lost could be detrimental if consumers are
demanding

Application Of Waterfall And Agile Methodologies On...
ITPG8.100 Advanced IT Project Management Auckland Assignment – 2 Case Study: Application of
Waterfall and Agile Methodologies on Service Delivery Platform (SDP) Project Table of Contents 1.
Abstract 3 2. Introduction 4 3. Description 6 4. An Overview of Service Delivery Platform 7 4.1
Salient features of SDP 7 4.2 How SDP works 8 4.3 Network Architecture 10 4.4 SDP platform
main Components 11 4.4.1 Message Management Layer (SMS/USSD/Web interfaces) 11 4.4.2 Call
Management Layer (IVR – Interactive Voice Response) 11 4.4.3 Content Management and delivery
(CDP) 11 4.4.4 Subscription Manager (SCM) 11 4.4.5 Reporting System 12 5. Project Plans 13 5.1
SDP project development plan using AGILE methodology: 13 5.2 SDP project development plan
using WATERFALL methodology: 15 6. Discussion 18 7. Conclusion 19 8. References 20 1.
Abstract Agile methodology follows iterative development method which make it more suitable to
use for light weight projects where the changes are frequent. Waterfall on other case is a heavy
weight methodology with no changes or iterations allowed once the project starts. Here the
requirements are fixed and any change later is not accommodated and will be considered as a new
project. Both the methodologies are adopted for a project based on its type and requirement. In this
paper We have applied both Waterfall and Agile methods to a Service Delivery platform project of a
telecom company to come up with an individual project plans

The Between Waterfall And Agile Software Development
Introduction A problem face nowadays by many companies is related on decide between continue to
use a plan driven methodology, such as Waterfall, or trying a different approach like Agile. The
major problem might be the way these two concepts are often presented as being mutually
exclusive. This dichotomy often causes an automatic rejection of one methodology over the other,
making it even more complicated to decide between one or another. This polarization misconception
is what makes so difficult to successfully applying an Agile project management approach. Instead
of trying to use the best of each approach, or to adapt for its needs, companies sometimes try to
force their business and projects to one of those extremes. The problem with ... Show more content
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To minimize scope creep some form of change control is generally implemented to manage and
limit changes to the requirements of the project, once the scope of requirements has been approved.
The goal is to try to achieve predictability and control over the project costs and schedule. Because
of its sequential aspect developers cannot go back to a previous step without go back to the
beginning, making very difficult to implement changes or correct errors from the scope of the
project. All the details must be set at the beginning of the project with all the details to be followed
carefully over the project life cycle. Due to its characteristics, the Waterfall method has some really
good advantages towards it. First of it, the client knows what to expect. After all the requirements
gathering and analysis a well estimated project is presented, with a good idea of the size, cost, and
timeline for the project. More than this, the client will have a definite idea of what their program
will do in the end. Secondly, its meticulous record keeping allows the ability to improve the existing
program in the future, and because of waterfall's strong documentation it allows for minimal project
impact when facing an employee turnover. These two main points, predictability and well–
documented projects are the Waterfall flagship in an industry that pursue the best cost

Disadvantage Of Waterfall Model
Waterfall Model benefit, disadvantage and critique Waterfall Model is the first software
development process model proposed by Royce in 1970 which is a linear sequential software
development life cycle (SDLC) model. It is a sequential process model which does not overlap. It
means that until the one phase is not completed then next phase cannot start. Requirement Analysis:
often know as Software Requirements Specification (SRS). In this phase, all requirements of the
software product are collected and documented in software requirement specification document. It
implicates system and business analysts to define both functional and non–functional requirements.
Functional requirements are defined by means of use cases which describe ... Show more content on
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Also, some enhancement can do in this phase if user is not fully satisfied. Waterfall approach has
become so prevalent and popular that major US governmental organization started utilizing it. The
most famous uses of waterfall are in the US Department of Defense (DOD) and NATO. Although
waterfall utilized by many businesses and organizations around the world. Below are the are benefits
and drawback to this approach mentioned in many literatures. Advantages Disadvantage It is very
easy to understand and use. Each phase has a specific deliverable and review process. Phases are
processed and completed one at a time. Works well for small projects where requirements are well
understood. Clearly defined phases. Well understood deliverables. Arranging tasks easily. Process
and results are documented. Working software is available late during the life cycle. It has a lot of
risks. A poor model for large projects. It is not fit for projects where requirements are changed
frequently. Difficult to measure progress during phases. It cannot manage changing requirements.
Adjusting scope during the process model can end a project. As waterfall is the oldest, and is still
widely practiced, it tends to be the standard against which other development approaches are
compared. However, in general minimal empirical evidence exists to support the advantages of any
one

Thomas Hardy 's Under The Waterfall
Thomas Hardy's "Under the Waterfall" is a poem that can be interpreted in many different ways.
One cannot deny the power and influence nature has over the two lovers. The reader can understand
that a voice is evoked by a memory of having a picnic in August near a waterfall with their romantic
partner every time he or she places their hands into a pool of water or 'basin of water '. One says "he
or she" because the poem does not specifically tell the reader if it is the woman or man speaking.
Hardy discusses the purity, serenity and permanence of the waterfall. Hardy establishes the first
lines: Whenever I plunge my arm, like this, In a basin of water, I never miss The sweet, sharp sense
of a fugitive day Fetched back from its thickening shroud of gray. (1–4) Already, one can gather a
woman in hindsight of a moment is telling the poem in time. From this, it brings to light straight
away that she is talking about something from the past that cannot be regained or repeated. In
essence, the 'fugitive ' day has escaped. Hardy also uses an oxymoron here with 'sweet sharp ' to
describe the day making clear that it was a nice delicate memory but is also a spiteful memory (3).
The word 'fugitive ' means criminal, which suggests that this memory of lovers was possibly against
the law or was an affair where the couple was rebellious (3). This supports the reason why one of
the couple remembers the memory vividly: from remembering

Process Of Software Development : The Waterfall Model
In this semester, we covered three SDLC's waterfall, incremental, and integration. The waterfall
model divided the process of software development into different steps and the next step could not
be initialized until the current step was completed. Incremental development was more of an agile
development, since the processes could interleave. Integration development relies heavily on
reusable code, which focused into integrating the components into the system. GCC and CLANG
strive to give users the latest and most recent updates of their compilers. Therefore, with both being
updated so frequently, the waterfall model is not the best SDLC for either of these systems.
However, GCC or CLANG could be either incremental or integration. Both ... Show more content
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CLANG allows the public to submit changes that could become requirements, but they need to be
validated by the CFE or DEV team depending on what kind of changes need to be made. They also
have standards that need to be followed in contemplation of changes becoming requirements.
Software documentation is a key part of the system in order to give guidance of how the architecture
of the software project is made. CLANG uses doxygen to generate its documentation, since the
system is constantly changing. GCC uses their own online documentation to provide manuals and
latest releases. Both GCC and CLANG have incredibly detailed and easy to follow documentation,
which gives the user the essential information to perform any task on the compilers.
As described above in brief detail both GCC and CLANG allow the public to submit changes and
both have standards that need to be followed in order to get the changes looked at. GCC will only
commit changes if is considered a major change. They have a description on what a major change is
as well as what the process is to make a major change. CLANG provides a more thorough
explanation on what is done to validate a patch and release it to the public, which makes it better in
a way. CLANG describes the seven steps that merits a proposed extension, as well as the coding
standard that needs to be followed. Both systems have a complex way of validating changes, since
they need to guarantee that the change is not only valid but also doesn't

Designing A Waterfall Approach For Software Development Essay
Like many companies, Siltronica has historically utilized a Waterfall approach for its software
development, especially with large enterprise–wide solutions. The general steps for Waterfall are:
requirements gathering, analysis, design, development, testing, and implementation (followed by
maintenance). These steps are done in this order and you don't move to the next step (or Phase) until
the completion of the previous stage. One advantage of this methodology is the extensive
documentation that is done at each stage in the process. This allows for the movement of resources
in and out of the project (which is often needed given the long duration of most of these projects).
Waterfall does have its issues: the process is generally "uni–directional" meaning that once the
project hits a certain stage, there's no mechanism to go back to a previous stage. This prohibits this
method from being responsive to changing environments and/or requirements. The extensive
documentation required at each stage (requirements, specification, design documentation, test plans
and status) requires a great deal of time to complete. Additionally if it is discovered that there was a
major issue with a missing requirement or the coding (and it's uncovered in time) it is extremely
expensive to make an adjustment. One of the most prevalent approaches companies utilize today is
Agile. The Agile approach was developed to mitigate many of the shortcomings of Waterfall. "The
agile development

Speech On Yosemite National Park
"Good morning! Today we will be going to Yosemite National Park. I hope you are prepared..."
Eddie, the tourist guide, announced a little too enthusiastically for an early morning after my family
and I entered the bus. Taking a seat by the window, I tried drowning him out with my music, and
then proceeded to sigh when I could still clearly hear him through my headphones. I was annoyed,
but not because I did want to go to Yosemite; I just did not want spend time with the group of loud
and obnoxious tourists on the bus. When my family and I first agreed to go on a tour of Yosemite, I
was excited because I had never been there and I had heard many positive reviews about its scenery.
That day, however, it was hot, I was worried about starting college soon, and all I wanted was to
sleep comfortably without a Chinese tourist behind me complaining about the American
government. "Great," I thought sarcastically to myself, "what a fun trip." When we reached
Yosemite, however, my attitude completely changed. Although I was still with the group of loud
tourists, I was able to mentally escape from them and my worries for the short duration in Yosemite.
The immense cliffs, everlasting sequoias, beautiful waterfalls, and abundant wildlife were
mesmerizing and for the first time in a while, I felt humble and small, as if I were just a tiny ant in
an incredibly huge world. We, as humans, often forget our relationship with Mother Nature, but this
trip to Yosemite had reminded me of this

The Pyramid Of The Waterfall Model Is Imminent, And Other...
The first article I selected focuses on the Waterfall method of software development, entitled "The
Demise of the Waterfall Model Is Imminent" and Other Urban Myths. Authors P. Laplante and C.
Neill, take a conversational, slightly cheeky approach to dispelling the prevailing thought that the
application of the Waterfall method was in steady, rapid decline. The Waterfall method is
characterized by a methodical but rigid five step process to developing software: Requirements;
Design; Implementation; Verification; Maintenance. Each step is addressed completely before
moving onto the next step, and once in a given step of the process, there is usually no going
backwards. This method favors a disciplined approach to development, ... Show more content on
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The second myth that the authors address is one relating to prototyping, a missing element of the
Waterfall method. The prevailing thought is that prototyping offers an avenue to hasten the
development process and can even minimize the number of errors. The authors go a step further in
identifying a subset of prototyping that is more incremental in nature, characterized by improving
one's original prototype iteratively. This approach to prototyping means that it evolves over time,
thus aptly named evolutionary prototyping. The authors draw a fine balance in weighing the benefits
and costs associated with prototyping but ultimately, they reject that prototyping is necessary to
increase the efficacy of the Waterfall method. They argue that unlike an engineering solution,
software prototypes can be used in the final prototypes, thanks to evolutionary prototyping. Yet,
prototyping does not necessarily correlate to decreased numbers of errors in programming. Their
contention then is that the rigor built–in to the Waterfall method ultimately delivers a greater quality
end–product beyond the operational properties of the software, which is something prototyping does
not necessarily support. The final myth postulated is that the Waterfall method is underappreciated
as an industry best practice. The authors state that while a third of respondents cite it as the primary
method of development, a slightly greater number of respondents

The Waterfall Methodology By Winston Royce
The Waterfall methodology was created by Winston Royce in 1970 and is based on the idea of
"...progressing linearly from conception, through requirements, design, code and test..." (Neill,
2004). One of the main assumptions about this method is that the requirements will change very
little if at all and that users will not be involved in development or be providing much feedback
(Neill, 2004). A really good definition given by Laplante and Neil on this methodology is, "This
model of development assumes that requirements are set, stable, and fully evolved before analysis
begins, because development progresses linearly through the phases from requirements through
system deployment. A phase is revisited only if artifacts created in that phase fail inspection review,
or test. If you run into people who dispute this argument, remind them that water doesn 't flow up a
waterfall" (10). The Agile Scrum methodology is quite different as it 's, "...characterized by
continuous feedback and change, and a software system developed using ADM evolves
continuously through short iterations" (Renuka Sindhgtta, 2010). Sindhgatta, Nanjangud and
Sengupta use the words iterative and incremental which truly sums up this method. To summarize
their full definition of an Agile Scrum method, it consists of small defined sprints that are generally
predefined as far as how long they take and what they are meant to accomplish. After a sprint is
complete it is tested and presented to a larger

Waterfall Model Is Based On Sequential Process
Waterfall model is based on sequential process that is used in software development process. It takes
place in steps. It is called as waterfall because it moves step by step in downward direction. As seen
in manufacturing and construction site, each process is well structured and carried out step by step,
in software development Waterfall model carries out all phases in sequential manner. All the phases
like Conception, Initiation, Analysis, Design, Construction, Testing, Implementation and
Maintenance are carried out in a sequential manner, step wise. It is stated that the first formal
description of Waterfall model was made in 1970 in the article written by Winston W. Royce.
Though the first use of waterfall model was made in 1976 in the article written by Bell and Thayer.
2.0 Spiral Model
2.1 Introduction & Overview [2]
Spiral model is another alternative process that is used in software development cycle. It is more
focused on risk analysis. It is based on unique risk pattern that is adopted by the software. It can
adopt any of the software development process such as incremental, evolutionary prototype and
waterfall model. This method was introduced in 1986 in paper written by Barry Boehm. This model
has four phases Planning, Risk Analysis, Engineering and Evolution. At each progress the software
project has to be passed through all these four phases. The baseline spiral is reference for each other
subsequent spirals. The baseline spiral starts with the planning

Comparing And Contrasting Waterfall Vs. Agile
each methodology, comparing and contrasting Waterfall vs. Agile and discuss how each method
might be applied to the fulfillment center at the small pharmaceutical company where I work;
Vertical Pharmaceuticals in Sayreville, New Jersey. Lastly, I will provide my reasoning on which
method is better suited to the Vertical warehouse environment and why. The Waterfall methodology,
which has been used since the 1970's and is sometimes referred to as the traditional approach to
software development, is based on following a rigid, sequential, start–to–finish tactic; following a
series of very specific steps at each stage. 1. Requirements 2. Design 3. Implementation/Coding 4.
Testing 5. Maintenance. With Waterfall, each previous stage is completed ... Show more content on
Helpwriting.net ...
In addition, defining requirements can be difficult and sometimes early assumptions are flawed.
Some opponents of Waterfall argue that it is impossible to fully understand the system requirements
until the development phase and that some performance issues cannot be predicted or are not
evident until the testing phase. Waterfall is not well–suited for custom software projects that rely
heavily on continuous customer feedback and changing needs because communication and
collaboration is not always stressed; once the requirements are established, the customer may have
little contact with the development team until delivery. (Chatterjee, 2010) Because Waterfall projects
are not based upon small iterations that can be easily and promptly modified, occasionally critical
errors are found in the late stages of a Waterfall software development project that require scrapping
the project and starting over; a very costly and disappointing result. Another negative is that some
programmers believe that Waterfall is out–of–date and that it does not accommodate for the
unknown factors that are a constant challenge in designing leading edge technology. Developers
who abide by

Comparing Articles That Tackle The Waterfall Method And...
Saint Joseph's University Waterfall Method And The Agile Management Approach Michael
Cadwallader Foundations for BI: DSS600 Marvin Hagen June 21, 2015 Comparing articles that
tackle the Waterfall Method and the Agile Management Approach: A Comparison and Contrast
Finding out what will permit an organization to work optimally is the driving impetus behind almost
any business or organizational theory. The Waterfall Method appears, at first glance, to be a lot like
the Roman Civil Code: anticipate as many contingencies as possible, and then proceed to delineate
how they will all be tackled. The problem, as the literature seems to note, is that there will always be
things or exigencies that cannot be anticipated – which is why agile ... Show more content on
Helpwriting.net ...
Agile methods, unlike ISDs, bring constant iterations, constant user involvement, and frequent
releases and close communication. Clutterbuck emphasizes how a case study of one small SME
shows the success gained when it moved away from ISD towards agile management. Overall, agile
management anticipates risks, reacts aggressively to new challenges or encrustations, and allows all
parties and decision makers to draw closer together. The only challenge, Clutterbuck (2009) argues,
is that agile management does come into conflict with the need to formalize contractual obligations
between the customer and the developer or producer of the product (Clutterbuck, 2009). What
becomes manifest in reviewing the article above is that ISD plans really are clumsy efforts at
freezing possible change in place so that nothing which might emerge in the developmental process
can catch decision–makers and designers by surprise. But, reviewing Clutterbuck's case study and
the extent to which the SME in question was able to draw together clients and staff while rendering
congruent differing ideas and perceptions (Clutterbuck, 2009) it becomes clear that agile
management is the implement that puts designers and end users on the same page when it comes to
what a product will do – and what it will not (or should not) do. An ISD plan can be a lot like a
formal contract, but even a clever contract may not be able to anticipate

Description Of A Famous Waterfall
I was excited to take one glance at a famous waterfall when I was in the car. Almost there. Almost
there. I was seconds away. I took a deep breath. I saw this waterfall in a book, but it was blurry. One
glimpse. 1...2...3...
Waterfalls form differently most of the time and it creates something interesting. Waterfalls can be
formed in many ways. One way they can form is when natural disasters hit a rock under a stream
then it forms. Another way they can form is when water pushes the rock away many times from the
stream. There are many types of waterfalls and some waterfalls have more than one type. The
dictionary meaning of waterfall is "a very steep descent of the water of a stream." The Pacific
Northwest has many waterfalls and they can be ... Show more content on Helpwriting.net ...
Do all waterfalls hit a rock on it's way down?
Puff Falls
Puff Falls is 133 ft. down and is over double the size of Spirit Falls. It's located at Gifford Pinchot
National Forest in Washington. Puff Falls is not easily accessed because it's in a forest. Puff Falls is
a plunging Punchbowl waterfall. It's that because it doesn't touch any rock on the way down and the
water falls in a pool. Puff Falls flows through Dry Creek and another name for it is Dry Creek Falls.
Is Puff Falls considered tall?
Salt Creek Falls
Salt Creek Falls is 286 ft. tall and in Oregon it's the 2nd tallest one drop waterfall. Salt Creek Falls is
easily accessed because you can drive there, and there are many things you can do there. It was
discovered by Frank S. Warner and Charles Tufti in 1887. Over many years Salt Creek Falls has
become popular. It's a Plunge type waterfall. They found that out from looking above and below the
falls. Is Salt Creek Falls the most popular in the Pacific Northwest?
Shoshone Falls
Shoshone Falls is the most famous waterfall in Idaho and it's nickname is "Niagra of the West." It's
over 900 ft. across and 212 ft. down. Shoshone Falls is the widest waterfall in Idaho. It's name came
from an Indian tribe. They named it after the tribe because that's where the tribe lived. Shoshone
Falls is a block waterfall and runs through the Snake River. A block waterfall is a waterfall that
flows from a wide stream. Waterfalls have been known

Project Development Models: The Waterfall Method
Introduction 1. Project development models are control systems which help establish the framework
for conducting a project. There are many different models that can be used, however, correct
selection of a methodology is paramount to its success. If applied correctly it will aid Project
Managers in controlling a project throughout its lifespan and enable them to react to the
unpredictable. With many different project development models available selecting the correct one
could in itself become a mini project. This assignment will look to research and report on three
different project development models (Waterfall, RAD and Scrum) examining their advantages and
disadvantages to aid in model selection. The Waterfall Method 2. The Waterfall method was
originally developed in 1970 by Dr. W Royce to assist with the development of software. It has
survived to this day through adaption and revisions enabling it to be one of the most widely used
models (Charvat 2003). Its namesake originates from the analogy of a waterfall flowing downwards
with the model following suit, cascading towards completion (Balaji and Murugaiyan 2012) this is
known as a serial lifecycle. Each phase (starting in the top left corner) within the serial lifecycle is
completed before moving on to the next phase until the end goal is reached (see Figure 1). This kind
of method suits projects that have clearly defined stage goals, outcomes or solutions that are
highlighted in the initial strategy of

Contrast Of Agile And Waterfall Development Methods
Contrast of Agile and Waterfall Development Methods Application requirements are provided by
stakeholders and users for all development efforts. This is true for both agile and waterfall
development projects. The difference is the amount of requirements that are provided. In the
waterfall approach, all requirements are provided at the beginning of the project (Israr Ur Rehman,
2010, p. 2). Specifically, for a new application, the expectation is that stakeholders are able to
provide all the requirements for the new application. Stakeholders, project managers, business
analysts, users of the application meet to identify and document the requirements. Detailed
application documentation is created, reviewed and signed off by the appropriate stakeholder (Ove
Armbrust, 2011, p. 239). Following the agile methodology, requirements are defined for the phase to
be delivered. The goal is to break up the application into iterations and define the requirements for
the iterations or stories (Ove Armbrust, 2011, p. 239). In the agile implementations, the requests are
stored in a backlog. This is the list stories remaining to be developed. Requirements documentation
generated from a waterfall project is extensive; in contrast to agile where the documentation is
limited to the story or stories to be developed (Ove Armbrust, 2011, p. 239). In my experience, the
requirements documentation has been stored in a central repository to be referenced during the
project.

waterfall model
Introduction The waterfall model is the most common model of all software development life cycle
models. It is very simple to understand and use. In a waterfall model, each phase must be completed
before the next phase can start. At the end of each phase, a review takes place to determine if the
project is on the right path and whether or not the project should be continued. Here phases do not
overlap with each other. Waterfall model is a sequential design process in which progress is seen as
flowing steadily downwards through Conception, Initiation, Analysis, Design, Construction, Testing,
Production/Implementation and Maintenance Phases. A Water Fall Model is easy to flow. It can be
implemented for any size of project. Every ... Show more content on Helpwriting.net ...
Requirement gathering and Analysis
This is the first phase of waterfall model which includes a meeting with the customer to understand
his requirements.
This is the most crucial phase as any misinterpretation at this stage may give rise to validation issues
later.
The software definition must be detailed and accurate with no ambiguities.
It is very important to understand the customer requirements and expectations so that the end
product meets his specifications.
Requirement gathering and Analysis phase the basic requirements of the system must be understood
by software engineer, who is also called ANALYST.
All this requirements are then well documented and discussed further with the customer for
reviewing.
2. Design
The customer requirements are broken down into logical modules for the ease of implementation.
Hardware and software requirements for every module are Identified and designed accordingly.
Also the inter relation between the various logical modules is established at this stage. Algorithms
and diagrams defining the scope and objective of each logical model are developed.
In short, this phase lays a fundamental for actual programming and implementation.
It is an intermediate step between requirements analysis and coding. Design focuses on program
attribute such as– 1) Data Structure. 2) Software Architecture. 3) Algorithm Details etc.
The

Waterfall Methodology : Waterfall Theory
Waterfall Methodology: After having reviewed definitions and perspectives by three author groups,
I'm inclined to conclude that waterfall methodology is essentially defined by its insistence upon the
completion of product development steps in a sequential manner in order to accommodate a client's
need for a product or tool that will enable their business to be performed in a temporally defined
effective (or desired) manner. By utility, for the sake of quickly delivering a product to the
satisfaction of its client, a development team who employs the waterfall method may do so because
of waterfall's logical yet rigid structure. Its step–by–step nature promotes an easy to follow guide,
though many of the tasks involved in the process of its development are anything but easy. Further,
waterfall's rigid nature seems to reinforce the notion of its logic, if but for the sake of timely product
completion and client budget. Due to its methodological rigidity, however, products developed by
way of waterfall may tend to be rigid in their own right. As noted by Williams in her article The
Documentation of Quality Engineering: Applying Use Cases to Drive Change in Software
Engineering Models, when the waterfall method is employed, an application will not be delivered to
a client until all of its stages are "... complete, in order. First, one project phase must be completed
before the next starts. Also, once it is finished, it and its documents are not to be revised" [1, p. 5].
This

Advantages And Disadvantages Of Waterfall Management
ISO 9001:2008 Certified Institute Java Institute for Advanced Technology
OBJECT ORIENTED SYSTEMS ANALYSIS AND DESIGN H7DV 04 H7DV 04/AS/01
RUCHINI ERANDATHI SCN NO : 157474812 947814141V
WATERFALL METHODOLOGY
The waterfall model of software engineering for the systems development life cycle model is the
most popular version. Often considered classic approach to life cycle of systems development ,
linear and sequential waterfall model describes the development system. Waterfall development
objectives are different for each stage of a development .Imagine a waterfall on the cliff of an alp.
Water has flowed over the edge of a steep mountain side and has started walking down , it cannot
turn back. It is same as the waterfall development. Once a phase of development is completed, there
is no turning back when the development proceeds to the next phase. ... Show more content on
Helpwriting.net ...
The rigidity of the model is easy to manage – Each stage has a specific distribution and review
process.
In this methodology phases are processed and completed one at a time and phases do not overlap.
Waterfall methodology proceeding well for smaller projects where requirements are very well
understood.
Disadvantages of waterfall methodology
When an application is in the testing stage, it is very hard to turn back and change something, that
was not well–thought out in the concept stage.
No working software is produced until late during the life cycle.
Uncertainty and the risk, very high.
It is not a good methodology for complex and object–oriented

Puff Falls
I was excited to see one glance at a famous waterfall when I was in the car. Almost there. Almost
there. I was seconds away. I took a deep breath. I saw this waterfall in a book, but it was blurry. One
glimpse. 1...2...3...
Waterfalls form differently most of the time and it creates something interesting. Waterfalls can be
formed in many ways. One way they can form is when natural disasters hit rock under the stream
then it forms. Another way they can form is when water pushes the rock away many times. There
are many types of waterfalls and some waterfalls have more than one type. The dictionary meaning
of waterfall is "a very steep descent of the water of a stream." The Pacific Northwest has many
waterfalls and they can be formed in ... Show more content on Helpwriting.net ...
Do all waterfalls hit a rock on it's way down?
Puff Falls
Puff Falls is 133 ft. down and is over double the size of Spirit Falls. It's located at Gifford Pinchot
National Forest in Washington. Puff Falls is not easily accessed because it's in a forest. Puff Falls is
a plunging Punchbowl waterfall. It's that because it doesn't touch any rock on the way down and the
water falls in a pool. Puff Falls flows through Dry Creek and another name for it is Dry Creek Falls.
Is Puff Falls considered tall?
Salt Creek Falls
Salt Creek Falls is 286 ft. tall and in Oregon it's the 2nd tallest 1 drop waterfall. Salt Creek Falls is
easily accessed because it's able to drive and there are many things you can do there. It was
discovered by Frank S. Warner and Charles Tufti in 1887. Over many years Salt Creek Falls has
become popular. It's a Plunge type waterfall. They found that out from looking above and below the
falls. Is Salt Creek Falls the most popular in the Pacific Northwest?
Shoshone Falls
Shoshone Falls is the most famous in Idaho and it's nickname is "Niagra of the West." It's over 900
ft. across and 212 ft. down. Shoshone Falls is the widest waterfall in Idaho. It's name came from an
Indian tribe. They named it after the tribe because that's where the tribe lived. Shoshone Falls is a
block waterfall and runs through Snake River. A block waterfall is a waterfall that flows from a wide
stream. Waterfalls have been known for their greatness and beauty

Waterfall And The Agile Model
The Waterfall and The Agile Model comparison
The waterfall model was legally introduced as an idea through a paper that had been published by a
man called Winston Royce in the year 1970. However, due to the waterfall model being introduced
by Winston Royce himself, it had been introduced as an example of a flawed software development
method, which was vulnerable due to its shortcomings. The waterfall model philosophy had been
inherited from the hardware manufacture and construction strategies that had been in practice in the
year 1970s; therefore it had a structured approach to the software development itself. In comparison
to the agile methodology, which developed in the year 1990s where the developers had decided to
break away from the traditional structured, segmented and administrative approaches, which were
being made to the developed software, and progressed towards more of the flexible development
styles. The term Agile can be referred to as being lightweight methods, which had been declared in a
research paper in the year 1974 by Edmonds. Furthermore, some of the most noticeable and
common agile methods of the software development that subsequently had been evolved were
known as Scum in the year 1995, 'Extreme Programming ' in 1996, 'Adaptive Software
Development ', 'Dynamic Systems Development Method ' in 1995 and 'Feature Driven Development
'. In the year 2001, a team of developers in the agile software development had declared the agile
manifesto. The agile

Descriptive Essay About Iceland
When I first started reading about Iceland, most of what I read was about how beautiful and
picturesque the country is and how it was going to blow my mind.
This got me intrigued with finding out more about Iceland. So I began researching a lot about the
country. What caught my eye as something that I really wanted to experience was this so–called
Ring Road trip.
Iceland has one main road (Route 1) that goes around the entire country. It's about 1,332 km or 828
miles. It takes about 18.5 hours to complete it without stopping.
The airport you fly into is called Keflavik airport and it's about 40 mins outside of Reykjavik the
capital and largest city in Iceland. (Fun Fact: Reykjavik is the most northern capital in the world).
There are two ways to start the ring road trip, Clockwise or counterclockwise. Loure and I started
counterclockwise as a lot of the attractions we wanted to see were on the South side of the country.
Most sources about Iceland and the Ring Road will advise that you should allow about 10 days to
fully experience the ring road. I would have to agree but of course you can do it much faster than
that. Loure and I completed it in 7 days and we saw most of the major attractions. We also met a
couple who completed the ring road in five days.
Below I will breakdown how I spent each day in Iceland along with some advice that I received and
learned during my trip to Iceland which will hopefully be beneficial to everyone.
Day 1 – Happy Campers, Bonus and

A Experiment On The Waterfall Method
The Waterfall Method was first Process Model to be presented. It is likewise alluded to as a straight
consecutive life cycle show. It is exceptionally easy to comprehend and utilize. In a waterfall model,
each stage must be finished completely before the following stage can start. This sort of model is
essentially utilized for the for the project which is little and there are no indeterminate prerequisites.
Toward the finish of each stage, a survey happens to decide whether the project is on the correct way
and regardless of whether to proceed or dispose of the project. In this model the testing begins
simply after the advancement is finished. In waterfall display stages don 't cover. There are
favorable circumstances to utilizing the ... Show more content on Helpwriting.net ...
The finished result of an agile project might be altogether different from the one that was visualized
at the start. Notwithstanding, on account of the checking process, team members can make sure that
the item is one that clients need. This makes Agile Project Management especially suitable for new
or quick moving organizations, for those in a quick evolving condition, or for exceedingly complex
circumstances, where managers are "feeling their way forward" to locate the ideal plan of action. It
's likewise useful with pressing projects that can hardly wait for a full, conventional project to be set
up. In light of their wide extent of use inside a business, ERP programming systems are commonly
unpredictable and for the most part force noteworthy changes on staff work hones. Implementing
ERP programming is normally not an "in–house" expertise, so significantly littler projects are more
financially savvy if authority ERP implementation specialists are utilized. The period of time to
implement an ERP system relies on upon the span of the business, the extent of the change and
readiness of the client to take proprietorship for the project. A little project (e.g., a company of under
100 staff) might be arranged and conveyed inside 3 months; nonetheless, an extensive, multi–site or
multi–nation implementation may take years. The most vital part of any

Advantages And Disadvantages Of Waterfall
Waterfall Model Advantages As the waterfall model seems to be the most popular model being used,
there are some advantages to using it. The advantages can be seen more in distinct types of
organizations and situations. This method is useful in large organizations that are highly structured
and is able to emulate the structured needs of the organization. This method works for projects that
are less subjective in the nature of what is needed for an outcome. Projects that have a well–defined
end result will be able to utilize this method. Completely structured processes and goals are a
necessity. The waterfall method allows for easy reporting out on results during project. Each step is
very specific in what is to be accomplished at that time so showing defined progress towards can be
done easily. Accomplishments towards progress is easily visible due to specifically set progress
points. In this method, there is a potential cost reduction in moving too fast through project tasks.
With this method that is an inability to go back a step to change outcomes. Each step must be
completed thoroughly and correctly to be able to continue with the project. Documentation of the
process is an important piece of this method to allow for understanding of project procedures by
others. Disadvantages The waterfall method works well for certain scenarios but can be at a
disadvantage in other aspects of the project cycle. Chatterjee explained that the waterfall method
(Chatterjee,

Study On Traditional Sdlc ( Waterfall ) And Agile...
SYD701 ASSIGNMENT 3 Luke Rowe NMIT 2016 Contents Theory 2 Part One: Methodology 2
Overall Process 2 Phases/Stages 2 Outputs of each phase/stage 3 Planning 3 Defining 4 Analysis 4
Designing 4 Construction Iterations 5 Deployment/Release 5 Part Two: Four Elements 6
Descriptions 6 Why they work and what aspects of the development they cover 6 Practical 8
Reflection 9 Theory Part One: Methodology Overall Process For this project I have chosen to take a
different approach to how it will be done. As studying both traditional SDLC (Waterfall) and agile
approaches towards development of systems I believe that both of these methodologies have
qualities of good and bad. I plan to take the best of both from each methodology, the initial phases
of the Waterfall methodology provide a solid structure from which the actual build and development
of the project can be started upon. From where the build and development of the actual system the
process would go through an agile approach. This means that the system can be built in an
iteratively where for each iteration there can be adjustments that are simply made to the system. This
benefits the overall production as the development can react to changing requirements. This Agile –
Waterfall methodology comes with changes to both sides of the methodologies, as the waterfall style
development has to forfeit the certainty of expectations for the freedom that agile provides and
flexibility. While Agile has to sacrifice the amount of

The Waterfall Method And The Agile Methods Of Development
Evan Pierce
Marvin Hagen
Introduction to Business Intelligence – DSS600 – Lesson 9 Assignment
21 June 2015
Compare and Contrast the Waterfall Method and the Agile Methods of Development As it is with all
decisions we make in the day, there are often multiple opportunities which often times lead to a
single outcome. Such decisions as, "Do I take the turnpike today" can have such a profound impact
on the outcomes. Will you hit traffic on turnpike and as a result miss a meeting. If you go the
backway do you make the scheduled meeting? On any given day the same approach you have
always taken can backfire. Keeping this in mind we must learn how the business methods we
implement can often lead to the same outcome. What differs is the process ... Show more content on
Helpwriting.net ...
At no point in the process development can the next phase begin until the previous phase is
completed. This is how the waterfall method received its name, it begins at the top and works its
way down towards the bottom, and at no point can the process be reversed. Youssef Bassil in his
article titled "A Simulation Model for the Waterfall Software Development Life Cycle", defines the
water fall method as the following, "The Waterfall model defines several consecutive phases that
must be completed one after the other and moving to the next phase only when its preceding phase
is completely done. For this reason, the Waterfall model is recursive in that each phase can be
endlessly repeated until it is perfected." There are certain situations where the waterfall method is
advantageous in application and that involves the following; a short time frame, there3 are no
unclear expectations, the technology is understood, the requirements are fixed and the product
propose is stable.
There are distinct requirements of each phase in the water fall method, and the application of theses
requirements often dictate the success or failure of any development project. The first phase is
described as gathering and analysis which outlines and documents all possible requirements for the
system being developed. This includes the

Waterfall Methodology Essay
Choosing a proper method for software design is completely depended upon the requirements and
end products of the company. These requirements and goals might change in the process of
development of software depending upon the decisions of stakeholders, developers and system
analysts.
Waterfall life cycle model and Agile methodology are the methods to implement and develop
software. The initial methodology used by company is Waterfall methodology consists of sequential
steps for the designing of software. One can predict cost, duration and requirements of the project in
this method. This method is primarily used when organization knows what the end product of the
project is. Proper planning is required before the start of the project.
But there are some disadvantages of waterfall methodology. One major disadvantage is that
developers cannot go back to the previous step once they have completed the step. If the project
requirements are not satisfied initially then there might be a chance of project failure. It might also
cost budget issues as well as more duration to complete the project. If developers want to make
certain changes in the code of project in between then they again need to start from the beginning to
write the code.
To overcome these disadvantages of waterfall model, Agile methodology is designed. This
methodology uses incremental approach unlike waterfall model which uses sequential steps to
develop software. Incremental approach means processing and testing

The Code Is The Waterfall Methodology
As I worked longer in the field and gathered more experience I learned that this process that
companies were following of developing the specification document, performing analysis, writing
the code, testing and deploying the code was the Waterfall methodology. Named that, for the exact
reason that steps flowed from one point to the next and each step was completed before the next one
began. Additionally, this waterfall methodology worked well with the language and platform I
predominantly worked on. I was writing RPG and RPG IV with embedded SQL on what was
formerly known as the AS/400 now known as the IBM iSeries. RPG didn't have much flexibility for
user interfaces and was and is still commonly known as "green screen". Given the name "green
screen" because the screen background color was black and the lettering for the most part was green,
with minor color changes to words to create emphasis or requirement of fields from other non–
required fields. There were some interface overlays that later became available to the iSeries but
most companies were not interested in using them due to cost and they did not provide the
functionality or integrate with the AS/400 as well as they claimed to. At any rate, RPG/RPG IV
predominately remains "green screen" with regard to user interface and a very structured language.
As I moved thru my career and worked for larger companies, I found that software development
worked better when more people were involved in the process and

Agile V. Waterfall

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