Firmware, Middle-ware and Software Development Life Cycle (SDLC)

Firmware
 Firmware is a software program or set of instructions
programmed on a hardware device. It provides the necessary
instructions for how the device communicates with the other
computer hardware.
 It is held in non-volatile memory devices such as ROM, EPROM,
or flash memory.
 Firmware can be thought of as "semi-permanent" since it
remains the same unless it is updated by a firmware updater.
4

Examples of Firmware
 Embedded systems
 Traffic lights
 Digital watches
 Mobile phone
 Digital camera
 Remotes
 Consumer appliances
 Computers & Computer peripherals
Almost all electronic devices beyond the simplest contain some firmware.5

Middleware
 Middleware is computer software that provides
services to software applications beyond those
available from the operating system.
 It can be described as "software glue“.
 Middleware makes it easier for software developers
to perform communication and input/output, so they
can focus on the specific purpose of their application
6

Examples of Middleware
 Integration: Tools for data or process integration such
as an enterprise service bus.
 Transactions: Platforms for executing business
transactions such as market trades.
 Data Access: Database access services.
 Application Framework: A toolset for building
applications such as an API for developing mobile apps
on a particular operating system. 7

 Device Middleware: A toolset for developing
applications for a particular hardware environment.
 Game Engines: Frameworks for developing games
that implement services such as graphics
rendering, physics simulations and game scripting.
 Robot Middleware: Services for building robots
such as robot control and simulation frameworks.8

Planning
Analysis
Design
Developmen
t
Testing
Implementation
&
Maintenance
SDLC
9

Software Development Life Cycle (SDLC)
Planning
 Find out the problem
 Plan to solve
 Report to the preliminary investigation
Analysis
 System Requirements analysis
 Data gathering and analysis
 Report to the management
10

Design
 Preliminary Design
 Prototyping
 Final design
Development
 Development starts
 Programming or Coding
 Organized manners
11

Testing
 Test plan
 Debugging
 Documenting the programming
Implementation & Maintenance
 Auditing
 Evaluation
 Maintenance
12

Firmware, Middle-ware and Software Development Life Cycle (SDLC)

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