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COSYSMO Workshop Summary

COSYSMO Workshop Summary. Ricardo Valerdi Tuesday March 14, 2006 Los Angeles, CA. USC Center for Software Engineering Annual Research Review. Roadmap. Model refinements Most critical issues in area Most promising opportunities Ongoing work. Attendees (25). Karen Owens, Aerospace Corp.

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COSYSMO Workshop Summary

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  1. COSYSMO Workshop Summary Ricardo Valerdi Tuesday March 14, 2006 Los Angeles, CA USC Center for Software Engineering Annual Research Review

  2. Roadmap • Model refinements • Most critical issues in area • Most promising opportunities • Ongoing work

  3. Attendees (25) Karen Owens, Aerospace Corp. Anthony Peterson, Raytheon Garry Roedler, LMCO Gary Thomas, Raytheon Rich Turner, SSCI Ricardo Valerdi, MIT Marilee Wheaton, Aerospace Corp. Josh Wilson, PRICE Systems By phone Ben Carter, Boeing David Watkins, Rockwell Collins Bettina Babbitt, Aerospace Corp. Barry Boehm, USC-CSE Jim Cain, BAE Systems Ed Casey, Raytheon Suzanne Dawes, Aerospace Corp. Madeline Ellis, Boeing Peter Hantos, Aerospace Corp. Linda Huang, Northrop Grumman George Huling, USC-CSE Tony Jordano, SAIC Jo Ann Lane, USC-CSE Dan Ligett, Softstar Systems Miles Nesman, Boeing Ali Nikolai, SAIC Cindy Nikolai, US Air Force/Notre Dame

  4. Model Refinements • Upcoming book "Systems Engineering Cost Estimation With COSYSMO“ • Upcoming user manual for academicCOSYSMO • COSYSMO maintenance estimation • Overview of COCOMO/COSYSMO overlap • COSYSMOstar, et al

  5. Outline of academicCOSYSMO User Manual • Model definition & scope page count • Definition of terms 1 • COSYSMO Algorithm 1 • Size Drivers 2 • Cost Drivers 5 • Work Breakdown Structure 1 • Model Usage • Determining size via REQ, INTF, ALG, SCN 2 • How to avoid double counting ½ • Deciding between Easy, Medium, and Difficult ½ • Adjusting nominal effort (rating cost drivers) 1 • Model output • Project effort distribution across activities 1 • Project effort distribution across phases 1 • Potential overlap with other models (especially COCOMO II) 1 • Local calibration • Data collection 1 • Measurement process • Measurement instrument • Customization • Data analysis 2 • Modification of model spreadsheet 1 TOTAL 21

  6. Most critical issues • Calibration • Local tailoring based on historical data • Calico!!! • Counting rules • For size drivers • Guidance • On usage constraints • Possible overlap between COSYSMO, et al

  7. Most Promising Opportunities • Continue fostering the synergistic relationship between CSE and Affiliates via: • Case studies (LSI, PIC, Sub, etc.) • Workbook development (with examples and exercises) • Usage feedback

  8. Ongoing Work • Systems Engineering staffing profiles • Operation & Maintenance • Business strategies • Scenarios • Potential drivers/considerations • Piecemeal estimating • Schedule compression effects • Synchronization with SE Leading Indicators

  9. Typical Total Ownership Costs of Aerospace systems: 30% development, 70% O&M

  10. Next working group meetings: October 23-27 21st Forum on COCOMO and Software Cost Modeling/Inaugural Convocation of CSSE (Los Angeles) AND November 9-10 COCOMO East (Washington, D.C.)

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