E MBEDDED S YSTEMS S OFTWARE T RAINING C ENTER I NTRODUCTION TO Q UALITY A SSURANCE C OPYRIGHT ©...

EMBEDDED SYSTEMS SOFTWARE TRAINING CENTER

INTRODUCTION TO QUALITY ASSURANCE

COPYRIGHT © 2012 DSR CORPORATION

Objectives

Understand what is quality

Understand the software quality assurance basic notions, processes, and techniques

COPYRIGHT © 2012 DSR CORPORATION 2

Class Materials

Software Engineering Introduction diagrams are available here:

http://estc.dsr-company.com

Hands-on Exercises are available here:


http://estc.dsr-company.com/images/1/18/PM-L2-PM_Processes_materials.pptx

Agenda

1. Software Quality Fundamentals

2. Software Quality Management Processes

3. Software Quality Management Techniques

4. Software Quality Measures



SOFTWARE QUALITY FUNDAMENTALS

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Capability Maturity Model Integration


http://en.wikipedia.org/wiki/Capability_Maturity_Model_Integration

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http://en.wikipedia.org/wiki/Capability_Maturity_Model_Integration

Quality Improvement

Building quality through:

The prevention and early detection of errors

Continuous improvement

Customer focus

Total Quality Management (TQM) approach

The Six Sigma process

99.99966% of the products manufactured are statistically expected to be free of defects (3.4 defects per million)

Management sponsorship

Identifying actions and improvement projects to be addressed in a feasible time frame

Identify resources to achieve the goal defined for it

Proactive activities


http://en.wikipedia.org/wiki/ISO/IEC_9126http://en.wikipedia.org/wiki/Six_Sigma

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http://en.wikipedia.org/wiki/ISO/IEC_9126

http://en.wikipedia.org/wiki/Six_Sigma


SOFTWARE QUALITY MANAGEMENT PROCESSES


Code Review

Performed during Inspection or Walk-through

Finds the faults that are difficult to find by testing. Latent defect discovery rate:

Formal inspection is in the 60-65% range, at most 85%

For informal walk-through, the figure is less than 50%

For most forms of testing is about 30%

Does not replace testing

Up to 75% of code review defects affect software maintainability rather than functionality

Typical rate is about 150 lines of code per hour

Handled according to code review rules


http://en.wikipedia.org/wiki/Code_review

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http://en.wikipedia.org/wiki/Code_review


SOFTWARE QUALITY MEASURES


Software Complexity Metrics (cont.)


Complexity Analysis of Real Time Software Using Software Complexity Metrics to Improve the Quality of Real Time Software. Armin Krusko

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Summary

Software quality has a definite value and cost.

Software quality management processes intended to ensure the that quality is built-in into the software. Validation, Verification, and Review processes are the most intensive among them.

Various techniques are involved to achieve the Software Quality Management Goals. Static and dynamic are most useful among them.

Software quality measures allow us to estimate product quality as well as to plan, control, and improve the quality processes.


Questions1. What is software quality? Why quality is so important? What the

software quality cost consists of?

2. What are main software quality characteristics?

3. What are the main software quality management processes?

4. Give the short characteristic of Verification & Validation processes. Provide the examples of the applying of these processes on every stage of Software Life Cycle. Which Software Quality Management techniques are used in these processes?

5. What Reviews and Audits are used for? Which Software Quality Management techniques are used in these processes?

6. Characterize the Software Quality Management techniques. What the every technique allows to achieve and what it its limitaiton?

7. What are the Quality Measurement objectives? What the Software Quality Metrics do you know?


References

1. SWEBOK. Guide to the Software Engineering. Body of Knowledge. 2004 Version / A project of the IEEE Computer Society Professional Practices Committee

2. IEEE Std 610.12-1990, IEEE Standard Glossary of Software Engineering Terminology

3. TickITplus certification scheme. http://www.tickitplus.org

4. Capability Maturity Model Integration (CMMI) http://www.sei.cmu.edu

5. ISO 9001:2008. Quality management systems — Requirements

6. ISO/IEC 9126. Software engineering — Product quality

7. IEEE/EIA 12207.0. Standard for Information Technology – Software Life Cycle Processes

8. IEEE730-1998. IEEE Standard for Software Quality Assurance Plan

9. IEEE 1059-1993. IEEE Guide for Software Verification and Validation Plans

10. ISO/IEC 9126-1:2001. Software engineering -- Product quality -- Part 1: Quality model

11. IEEE1028-1997. IEEE Standard for Software Reviews Jones, Capers; Christof, Ebert (April 2009). "Embedded Software: Facts, Figures, and Future“

12. Complexity Analysis of Real Time Software – Using Software Complexity Metrics to Improve the Quality of Real Time Software. Armin Krusko

13. Software Engineering Code of Ethics and Professional Practice (Version 5.2) as recommended by the ACM/IEEE-CS. http://www.acm.org/about/se-code


http://www.tickitplus.org/

http://www.sei.cmu.edu/

http://doi.ieeecomputersociety.org/10.1109/MC.2009.118

http://www.acm.org/about/se-code

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