CMMI

Capability Maturity Model Integrated
Short Overview
Quality
Frameworks
Presented By: AHM Pervej Kabir
ERA-InfoTech Limited.
+8801757051005

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Outline
• Introduction
• High level overview of CMMI
• Questions and comments

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What is CMMI?
• CMMI (Capability Maturity Model Integration) is a proven
industry framework to improve product quality and
development efficiency for both hardware and software
– CMMI has been established as a model to improve
business results
– Emphasis on business needs, integration and
institutionalization
• CMMI (Capability Maturity Model Integration) not asks What
to do? It asks, How to do?

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How can CMMI help?
• CMMI provides a way to focus and manage hardware and
software development from product inception through
deployment and maintenance.
– ISO-9000 are still required. CMMI interfaces well with them.
CMMI and TL are complementary - both are needed since
they address different aspects.
• ISO-9000 is a process compliance standard
• CMMI is a process improvement model
• Behavioral changes are needed at both management and staff
levels. Examples:
– Increased personal accountability
– Tighter links between Product Management, Development,
SCN, etc.
• Initially a lot of investment required – but, if properly managed,
we will be more efficient and productive while turning out
products with consistently higher quality.

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CMMI Models within the Framework
• Models:
– Systems Engineering + Software Engineering (SE/SW)
– Systems Engineering + Software Engineering + Integrated Product
and Process Development (IPPD)
– Systems Engineering + Software Engineering + Integrated Product
and Process Development + Supplier Sourcing (SS)
– Software Engineering only
• Representation options:
– Staged
– Continuous
.

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CMMI Staged Representation - 5 Maturity Levels
Level 5
Initial
Level 1
Processes are unpredictable, poorly controlled, reactive.
Managed
Level 2
Processes are planned, documented, performed,
monitored, and controlled at the project level. Often
reactive.
Defined
Level 3
Processes are well characterized and
understood. Processes, standards,
procedures, tools, etc. are defined at the
organizational (Organization X ) level.
Proactive.
Quantitatively
Managed
Level 4
Processes are controlled using
statistical and other quantitative
techniques.
OptimizingProcessM
aturity
Process performance
continually improved through
incremental and innovative
technological improvements.

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Behaviors at the Five Levels
Initial
Managed
Defined
Quantitatively
Managed
Optimizing
Process is unpredictable,
poorly controlled, and
reactive
Process is characterized
for projects and is often
reactive
Process is characterized
for the organization and
is proactive
Process is measured
and controlled
Focus is on continuous
quantitative improvement
Maturity Level Process Characteristics Behaviors
Focus on "fire prevention";
improvement anticipated and
desired, and impacts assessed.
Greater sense of teamwork and inter-
dependencies
Reliance on defined process.
People understand, support and
follow the process.
Over reliance on experience of good
people – when they go, the process
goes. “Heroics.”
Focus on "fire fighting";
effectiveness low – frustration high.

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CMMI Levels……..

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Level Wise Process Areas
.

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Maturity Level Project Managment Engineering Process Management Support
5
Optimizing
Organizational Innovation & Deployment Causal Analysis & Resolution
4
Quantitatively
Managed
Quantitative Project Mngt Organizational Process Performance
3
Defined
Integrated Project Mngt
Risk Management
Requirements Development
Technical Solution
Product Integration
Verification
Validation
Organizational Process Focus
Organizational Process Definition
Organizational Training
Decision Analysis & Resolution
2
Managed
Project Planning
Project Monitoring &
Control
Supplier Agreement Mngt
Requirements Mngt Measurement & Analysis
Process & Product Quality Assurance
Configuration Mngt
1
Initial
CMMI Process Areas

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CMMI Components

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CMMI Terminology & Structure
Maturity Levels (1- 5)
Generic
Practices
Generic
Goals
Process Area 2
Common Features
Process Area 1 Process Area n
Verifying
Implementation
Specific
Goals
Specific
Practices
Ability
to Perform
Directing
Implementation
RequiredRequired
Sub practices, typical work products,
discipline amplifications, generic
practice elaborations, goal and
practice titles, goal and practice notes,
and references
Commitment
to Perform
Sub practices, typical work products,
discipline amplifications, generic
practice elaborations, goal and
practice titles, goal and practice notes,
and references
InformativeInformative
Required. Specific for
each process area.
Required. Common
across all process areas.

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CMMI Pitfalls of implementation
• Implementing CMM does not occur overnight.
• Implementing CMM is not merely a “paper drill”.
• Typical times for implementation:
– 3-6 months of preparation
– 6-12 months of implementation
– 3 months of assessment preparation
– 12 months for each new level
How Long Does it Take?

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Pitfalls of CMMI implementation
Is It Perfect?
• No! Some implementations do more harm than
good.
– Complete re-vamp of processes to “get certified”
instead of smartly adapting processes.
– Process focus used more as a stick than as a carrot.
– Focusing on compliance instead of improvement.

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Advantage of CMMI implementation
•Defect rates have dropped
•Defect detection occurs earlier
•User requirements are documented, controlled,
and managed with monitoring
•Especially important when users change their minds!
•Estimating improves and becomes more precise
•Risk management is a practice
•Development processes remain agile!

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CMMI Implementation Best Practices
•Be Realistic – Some processes will be more ready
than others.
•Be Flexible – Allowing tailoring is key to adoption.
•Be Open – The key is to learn how to do things
better, not how to “comply”.
•Be Patient – It does not happen overnight.

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CMMI Resources
• Software Engineering Institute's CMMI
website:
http://www.sei.cmu.edu/cmmi/

CMMI

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