Fpa Cosmic Ffp Convertability Final

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A Sogeti study to which extent it\'s possible to convert function points to COSMIC function points and back. A framework on how to make the transition from FPA to COSMIC as the leading FSMM in the organzition. - Published at the SMEF2007 conference (Rome, May 2007)

Software Measurement European Forum 2007 Conversion of Functional Size FPA  COSMIC Harold van Heeringen Thursday May 10, 2007 Rome, Italy

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object]

COSMIC-FFP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sogeti Bid challenge ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Possible reasons to migrate to COSMIC ,[object Object],[object Object],[object Object],[object Object],[object Object]

Reasons why organizations don’t migrate ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sogeti conversion study ,[object Object],[object Object],[object Object],[object Object]

FPA Users Transactions Logical files (data functions) ILF EIF EI EQ EO

FPA in a nutshell ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

COSMIC in a nutshell ,[object Object],[object Object],[object Object],[object Object]

Most important differences Size is not limited Yes Size limit per function Few (ISBSG R10: n=110) Many (ISBSG R10: n=3108) Benchmarking data No, but local extensions are possible No Measurement of processing functionality Business, Real-time, Infrastructure Software Business Software Applicable on Domain Based on process model Based on data model Early sizing Possible Not possible Measurement of separate components? Not required (but useful) Required Data model required? COSMIC FPA

Correlation? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Earlier conversion studies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sogeti Study (2006) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Division of the data set? ,[object Object],[object Object],CFP = 1,6 (FP NESMA-TX) -17 R 2 = 0.88 CFP = 0.68 (FP NESMA) +16 R 2 = 0.45 CFP = 1.24 (FP NESMA) -80 R 2 = 0.96

Sogeti 2006 ,[object Object],[object Object],[object Object]

Results ,[object Object],[object Object],[object Object],[object Object],[object Object]

A Transition Framework ,[object Object],[object Object],[object Object],[object Object],[object Object]

Technical change ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Technical Change ,[object Object],[object Object],[object Object],[object Object]

Technical Change ,[object Object],[object Object],[object Object],[object Object],3) Create local statistically based conversion formula

Organizational change ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],After conversion  COSMIC analysis

Conclusion & Discussion ,[object Object],[object Object],[object Object]

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Fpa Cosmic Ffp Convertability Final

1. Software Measurement European Forum 2007 Conversion of Functional Size FPA  COSMIC Harold van Heeringen Thursday May 10, 2007 Rome, Italy

5. Estimating wizard

10. FPA Users Transactions Logical files (data functions) ILF EIF EI EQ EO

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12. COSMIC W X R E Users Transactions Data

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14. Most important differences Size is not limited Yes Size limit per function Few (ISBSG R10: n=110) Many (ISBSG R10: n=3108) Benchmarking data No, but local extensions are possible No Measurement of processing functionality Business, Real-time, Infrastructure Software Business Software Applicable on Domain Based on process model Based on data model Early sizing Possible Not possible Measurement of separate components? Not required (but useful) Required Data model required? COSMIC FPA

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31. Questions Discussion

Fpa Cosmic Ffp Convertability Final

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