SOFTWARE PROJECTS BENCHMARKING & ESTIMATION: CONTRIBUTIONS OF COSMIC FUNCTION POINTS Alain Abran, Ph.D. with contributions from Charles Symons & Sylvie Trudel 5 th International Conference on IT Data collection, Analysis, Benchmarking and Cost Estimation, Beijing (China) Sept. 20, 2017.
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SOFTWARE PROJECTS BENCHMARKING & ESTIMATION: CONTRIBUTIONS OF COSMIC FUNCTION POINTS · Software Sizing Options for Benchmarking & Estimation 4 Lines of code: X Can’t estimate until
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SOFTWARE PROJECTS BENCHMARKING
& ESTIMATION: CONTRIBUTIONS OF
COSMIC FUNCTION POINTS
Alain Abran, Ph.D.
with contributions from Charles Symons & Sylvie Trudel
5th International Conference on IT Data collection, Analysis, Benchmarking and Cost Estimation, Beijing (China) Sept. 20, 2017.
Presenter background - Alain Abran 2
20 years 25 years
Development Maintenance Process Improvement
ISO: 19761,
9126, 25000, 15939, 14143, 19759
+ 40 PhD
Agenda 3
Software Sizing options for Benchmarking &
Estimation
Versatility of COSMIC Function Points
Contributions of COSMIC to Benchmarking &
Estimation
Copyright: COSMIC & Authors 2017
Software Sizing Options for Benchmarking
& Estimation 4
Lines of code: X Can’t estimate until software designed X Technology-dependent, no standards
Functional size (Function Points):
International standard methods Technology-independent
Usecase Points, Object Points, ..
X Technology dependent, no standards X Mathematical validity?
Story Points X Entirely subjective
1st Generation of Function Points
5
Tables of weights:
Inputs - Matrix Output & Enquiries –
Shared Matrix
Transactions: weights in
FP (Function Points)
3 FP 4 FP
6 FP
3-step size range
Key limitations: - Only 3 values - Limited ranges (min,max) - No single measurement unit of 1 FP!