26 October 2001DRAFT1 COSYSMO: Constructive Systems Engineering Cost Model USC CSC Workshop October 2001

26 October 2001DRAFT2 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

26 October 2001DRAFT3 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

26 October 2001DRAFT4 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 InceptionElaboration ConstructionTransition

26 October 2001DRAFT5 Scope and Approach COSYSMO Size Cost Drivers Effort Duration Calibration # Requirements # Interfaces # TPM’s # Scenarios # Modes # Platforms # Algorithms - Application factors -7 factors - Team factors -8 factors WBS guided By EIA 632

26 October 2001DRAFT6 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

26 October 2001DRAFT7 Plan of Action & Milestones TaskDue DateResponsible* TaskDue Date Responsible* 1.Develop reference system11//01/01Reifer/Valerdi 2.Define cost drivers11/16/01Wheaton/Valerdi 3.Define size drivers11/16/01Hafen/Thomas 4.Define effort scope11/16/01Hafen/Thomas 5.Finalize survey instrument11/30/01Thomas/Valerdi 6.Send materials out for review12/03/01All focal points 7.Hold net meeting/discuss results12/11/01All focal points 8.Updates done/Delphi defined01/14/02Reifer/Valerdi 9.Send Delphi out01/15/02All focal points 10.Complete Delphi round02/15/02Reifer/Valerdi 11.Update done based on results03/05/02Reifer/Valerdi 12.Present results at annual review03/12/02Valerdi * Axelband/Boehm involved in all activities

26 October 2001DRAFT8 Summary and Conclusions Had a productive meeting Everyone contributed Plan of action and milestones defined Looking forward to results Thanks to our group for a job well done