- The document discusses quality assurance in the software development lifecycle, including key concepts, practices, and challenges. - It defines quality assurance, software development lifecycle phases, and differences between verification and validation. Common testing types like unit, integration, and non-functional testing are also covered. - The document then describes quality assurance practices used in industry, such as creating QA plans, requirements reviews, test case development, and validation activities at different stages. Finally, challenges of quality assurance are discussed around testing focus, cost of fixes, schedules, and career opportunities.

1. Quality Assurance
in
Software Development Lifecycle
Concepts, Practices, and Challenges
Adil Ahmed Mughal

2. About This Session
• What you must already know?
– Basic concepts of Software Engineering
• What you will learn today?
– Understanding commonly used concepts
– How do we use theory in practice
– What are the challenges we faced in industry

3. About This Session
• What you must already know?
– Basic concepts of Software Engineering
This is not a single side talk, its discussion!
• What you will learn today?
Promise me that you will raise hand when you
– Understanding commonly used concepts
have anything to say?
– How do we use theory in practice
– What are the challenges we faced in industry

4. About Speaker
Adil Ahmed Mughal
Affiliations:
Contact Information:
adil.mughal@live.com
@adilamughal
http://www.adilmughal.com

5. Concepts & Terminologies
• What is Quality?
– Conformances to requirements
– Fitness for use
– performs these specified functions correctly over
repeated use or over a long period of time

6. Concepts & Terminologies
• Purpose of QA
– To ensure software quality through the related set
of (validation and verification) activities

7. Concepts & Terminologies
Quality Assurance != Testing

8. Concepts & Terminologies
• Software Development Lifecycle (SDLC)
Planning Design Testing
Analysis Development Maintenance

9. Concepts & Terminologies
• SDLC & Quality Assurance
Quality Assurance (Umbrella)
Planning Design Testing
Analysis Development Maintenance
Quality Planning
Execution (Verification and Validation)
Measurement and Analysis

10. Concepts & Terminologies
Quality Assurance > Testing

11. Concepts & Terminologies
Functional & Non-Functional Testing

12. Concepts & Terminologies
Functional Non-Functional
Integrating Installation Interoperability
System Testing
Testing
Regression Compatibility Usability
API Testing
Testing
GUI Validation Documentation Globalization Security
Testing Review

13. Concepts & Terminologies
Error, Fault, Failure and Defect

14. Concepts & Terminologies
Error Fault Failure
• Missing/Incorrect • Incorrect step in • Inability of a
Human action computer program system
• Behavioral
deviation
Collectively referred as Defect

15. Concepts & Terminologies
Verification and Validation?

16. Concepts & Terminologies
Verification Validation
• Verification evaluates • Validation evaluates the
documents, plans, code, product itself.
requirements, and
specifications
• Involves the execution of
tests designed to cover each
• For example, of the specific system
• Inconsistent Requirements requirements
• Design Walkthroughs
• Code Inspections

17. Concepts & Terminologies
Verification Validation
• Verification evaluates • Validation evaluates the
documents, plans, code, product itself.
Verification and Validation?
requirements, and
specifications
• Involves the execution of
tests designed to cover each
• For example, of the specific system
• Inconsistent Requirements requirements
• Design Walkthroughs
• Code Inspections

18. Practices
• So how it is done in Industry?
Planning • Create a QA plan/test strategy
Analysis • Specification Review
Design
Development • Develop test cases for testing (validation)
• Test cases execution on developed software
Testing and Integration testing
Deployment • Build validation/Shipment assurance

19. Practices
• It could be improved like
• Create a QA plan/test strategy
Planning
• Review project plan
Analysis • Specification Review
Design • Analyze design
• Develop test cases for testing (validation)
Development • Code Inspection/Review
• Unit Testing
• Test cases execution on developed software
• Integration testing
Testing
• Test Automation (tools)
• Non-Functional Testing
Deployment • Build validation/Shipment assurance

20. Challenges
Focus on Functional Testing

21. Challenges
Relative Cost of Bug Fix

22. Challenges

23. Challenges
Time
Quality
Feature Cost

24. Challenges
Career Path and Opportunities
Myth: Those who are not comfortable
with programming takes QA job

25. Thank You!
Adil Ahmed Mughal
adil.mughal@live.com
@adilamughal
http://www.adilmughal.com