Paper presented during 5th Malaysian Software Engineering Conference 2011 (MySEC2011)

1. ADOPTING SIX SIGMA APPROACH IN
PREDICTING FUNCTIONAL DEFECTS
FOR SYSTEM TESTING
Muhammad Dhiauddin bin Mohamed Suffian
Faculty of Computer Science & Information System
mdhiauddin2@live.utm.my
AP Dr. Suhaimi Ibrahim
Advanced Informatics School
suhaimiibrahim@utm.my
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2. CONTENT
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RESEARCH FOCUS & BACKGROUND
OVERVIEW OF SIX SIGMA
FINDINGS - DEFINE
FINDINGS - MEASURE
FINDINGS - ANALYZE
FINDINGS - DESIGN
FINDINGS - VERIFY
CONCLUSION & RECOMMENDATION
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3. RESEARCH FOCUS & BACKGROUND
How to predict functional test defects in system testing phase
using predictors in phases prior to testing phase via Six Sigma
approach?
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4. OVERVIEW OF SIX SIGMA
A disciplined, data-driven approach and methodology for eliminating defects (driving
toward six standard deviations between the mean and the nearest specification limit) in
any process -- from manufacturing to transactional and from product to service
(www.isixsigma.com)
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5. FINDINGS - DEFINE
Software Development Life Cycle
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6. FINDINGS - DEFINE
Y-X Tree

7. FINDINGS - MEASURE
Measurement System Analysis
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8. FINDINGS - ANALYZE
Initial data set used
Initial prediction model
in a form of regression
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9. FINDINGS - DESIGN
Revised data set used
Revised regression
equation
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10. FINDINGS - VERIFY
PROPOSED MODEL
Functional Defects (Y) = 4.00 - 0.204 Req. Error - 0.631 CUT Error + 1.90 KLOC 0.140 Req. Page + 0.125 Design Page - 0.169 Total Test Cases + 0.221 Effort Days
Verify with new/fresh
projects
Control plan
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11. CONCLUSION & RECOMMENDATION

12. THANK YOU