COSYSMO: Constructive Systems Engineering Cost Model USC CSC Workshop 25-26 October 2001 26 October 2001 DRAFT

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 2001 DRAFT

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 2001 DRAFT

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 Inception Elaboration Construction Transition 26 October 2001 DRAFT

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

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 2001 DRAFT

Plan of Action & Milestones Task Due Date Responsible* Develop reference system 11//01/01 Reifer/Valerdi Define cost drivers 11/16/01 Wheaton/Valerdi Define size drivers 11/16/01 Hafen/Thomas Define effort scope 11/16/01 Hafen/Thomas Finalize survey instrument 11/30/01 Thomas/Valerdi Send materials out for review 12/03/01 All focal points Hold net meeting/discuss results 12/11/01 All focal points Updates done/Delphi defined 01/14/02 Reifer/Valerdi Send Delphi out 01/15/02 All focal points Complete Delphi round 02/15/02 Reifer/Valerdi Update done based on results 03/05/02 Reifer/Valerdi Present results at annual review 03/12/02 Valerdi * Axelband/Boehm involved in all activities 26 October 2001 DRAFT

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 26 October 2001 DRAFT