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COSYSMO: Constructive Systems Engineering Cost Model. USC CSC Workshop 25-26 October 2001. Elliot Axelband, USC Kim Bell, Aerospace Joe Betser, Aerospace Barry Boehm, USC Linda Brooks, TRW Gary Hafen, LMCO Cheryl Jones, US Army Tony Jordano, SAIC Dan Ligett, Softstar. Ray Kile, CSM - PowerPoint PPT Presentation
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26 October 2001 DRAFT 1
COSYSMO: Constructive Systems Engineering Cost Model
USC CSC Workshop
25-26 October 2001
USC
C S E University of Southern CaliforniaCenter for Software Engineering
26 October 2001 DRAFT 2
Participants• Elliot Axelband, USC
• Kim Bell, Aerospace
• Joe Betser, Aerospace
• Barry Boehm, USC
• Linda Brooks, TRW
• Gary Hafen, LMCO
• Cheryl Jones, US Army
• Tony Jordano, SAIC
• Dan Ligett, Softstar
• Ray Kile, CSM• Karen Lum, JPL• Karen Owens,
Aerospace• Don Reifer, USC• Gary Thomas, Raytheon• Ariel Tonnu, US Air
Force• Ricardo Valerdi, USC• Marilee Wheaton, TRW
USC
C S E University of Southern CaliforniaCenter for Software Engineering
26 October 2001 DRAFT 3
Agenda• Introductions
• Goals of effort
• Review of previous work and contributions
• Agreement on scope and approach
• Proposed plan of action and milestones
• Assignment of responsibilities
• Summary and conclusions
USC
C S E University of Southern CaliforniaCenter for Software Engineering
26 October 2001 DRAFT 4
Goals of Effort• Build a COCOMO-like model for estimating
system engineering resources– Member of the COCOMO family of models
• COSYSMO (Constructive System Engineering Model) fills in the holes not covered by COCOMO II
USC
C S E University of Southern CaliforniaCenter for Software Engineering
Inception Elaboration Construction Transition
26 October 2001 DRAFT 5
Scope and Approach
USC
C S E University of Southern CaliforniaCenter for Software Engineering
COSYSMOSize
CostDrivers
Effort
Duration
Calibration
# Requirements# Interfaces# TPM’s# Scenarios# Modes# Platforms# Algorithms
- Application factors-7 factors
- Team factors-8 factors
WBS guidedBy EIA 632
26 October 2001 DRAFT 6
Agreements• Use USC seven step model building process• Keep things simple
– Start with Inception phase first– Use EIA 632 to bound effort– Focus on software intensive systems
• Build on previous work• Shoot for having something meaningful done by
mid-March 2002– Much of the work done by volunteers, so must be
conservative in estimates
USC
C S E University of Southern CaliforniaCenter for Software Engineering
26 October 2001 DRAFT 7
Plan of Action & Milestones
USC
C S E University of Southern CaliforniaCenter for Software Engineering
TaskTask Due DateDue Date Responsible*Responsible*1. Develop reference system 11//01/01 Reifer/Valerdi2. Define cost drivers 11/16/01 Wheaton/Valerdi3. Define size drivers 11/16/01 Hafen/Thomas4. Define effort scope 11/16/01 Hafen/Thomas5. Finalize survey instrument 11/30/01 Thomas/Valerdi6. Send materials out for review 12/03/01 All focal points7. Hold net meeting/discuss results 12/11/01 All focal points8. Updates done/Delphi defined 01/14/02 Reifer/Valerdi9. Send Delphi out 01/15/02 All focal points10. Complete Delphi round 02/15/02 Reifer/Valerdi11. Update done based on results 03/05/02 Reifer/Valerdi12. Present results at annual review 03/12/02 Valerdi
* Axelband/Boehm involved in all activities
26 October 2001 DRAFT 8
Summary and Conclusions
• Had a productive meeting
• Everyone contributed
• Plan of action and milestones defined
• Looking forward to results
USC
C S E University of Southern CaliforniaCenter for Software Engineering
Thanks to our group for a job well done