Software quality assurance (SQA) consists of a means of monitoring the software engineering processes and methods used to ensure quality.

1. Lakshmi Pratyusha Kuppa
Software Quality Assurance

2. Introduction
 Defining and monitoring the software engineering process and methods
used in delivery of products or services
 It encompasses the entire software development life cycle which
includes process such as
o Requirements development
o Software design
o Coding
o Reviews and inspections
o Product integration
o Testing

3. Benefits of SQA
 SQA team should ensure that
Software development and maintenance are followed
Review, inspections and testing are conducted as planned
Compatibility of SQA plan and software development plan
Redefine the processes, if required
Conduct internal audits

4. Who?
 Need to be familiar with software development and engineering
methodologies
 Have an understanding of ISO 9001:2008 , CMMI and other client-
specific process frameworks in addition to basic principles of software
quality
SQA Plan:
 SQA plan contains details of tasks to be performed
 IEEE Std 730-1998 is widely used.
 Purpose
 Reference Documents
 Standards, practices, conventions and metrics
 Reviews and audits
 Test
 Problem reporting and corrective action
 Records Collection, maintenance and retention

5. Process
 Set of practices performed to achieve given objective
 Inputs : information, materials, data etc.
 Output : information , data , product or service
Process
Hardware and
Software
Procedures
Skills
Nature
Specifications
People
Output

6. Controlling a Process
 A process has mechanisms to control its behavior and performance
Input Process
Resources
Output Feedback

7. Process Frameworks
 The Plan-Do-Check Act(PDCA) cycle is the basic philosophy followed in all
quality standards
ACT
PLAN
DO
CHECK

8. Process Frameworks

9. ISO 9001:2008

10. CMMi
Provides Guidance
for those providing
services.
Provides Guidance
to enable informed
and decisive
acquisition
leadership.
Provides
Guidance for
measuring and
managing
development
process.

11. CMMi
Initial
•Processes
unpredictable
•Poorly
controlled and
reactive
Managed
•Processes
characterized
for projects
•Often reactive
Defined
•Processes
characterized
for projects
•Proactive
Quantitatively
Managed
•Processes
measured
•Controlled
Optimizing
•Focus is on
process
improvement

12. Six Sigma
Define
Measure
AnalyzeImprove
Control
Define the system
Measure key aspects
of the current
process and collect
relevant data
Analyze the data to
investigate and
verify cause-and-
effect relationships
Improve or
optimize the
current process
Control the future
state process

13. TMMi
Initial
Managed
• Test Policy Strategy
• Test Planning
• Test Monitoring and
Control
• Test Design and
Execution
• Test Environment
Defined
• Test Organization
• Test Training Program
• Test Life Cycle and
Integration
• Non-Functional testing
• Peer Review
Management
and
Measurement
• Test Measurement
• Software Quality
Evaluation
• Advanced Peer
Review
Optimization
• Defect Prevention
• Test Process
Optimization
• Quality Control