Dudley Knox Library: a brief for Executive Council

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					             SRDR Data Analysis Workshop
                     Summary

                        Brad Clark
                       Ray Madachy
                       Thomas Tan


25th International Forum on COCOMO and Systems/Software Cost Modeling
                              November 5, 2010
                        Workshop Participants

•   Barry Boehm            •   Ray Madachy
•   Brad Clark             •   Arlene Minkiewicz
•   Sue Koolmanojwong      •   Ramin Moazeni
•   Gary Hafen             •   Vu Nguyen
•   Peter In               •   Wilson Rosa
•   Jo Ann Lane            •   Bob Stoddard
•   Ilya Lipkin            •   Rick Selby
•   Tom McGibbon           •   Tom Tan


                                                   2
                           Agenda

•   Data Reduction
•   Building an Estimate
•   Metrics Manual
•   Application Domains




                                    3
                                      Data Reduction

• Level of data issues
• Domain prioritization (top 7 identified)
• Program reporting differences
• Add manual appendix listing systems used in domain analysis
• Manual should provide advice on system decomposition for
  estimation using the domain categories
• Focus for users primarily in concept exploration and contract
  award (MS B or MS A if SLOC known)




                                                                  4
                            Normalizing Size

• Reviewed SLOC definitions – no changes
  recommended
• COTS estimation parameters differences
• Reviewed backfilling assumptions for
  equivalent size – no changes
• Model-based sizing issues
  – Different model types
• Consider requirements-based sizing

                                               5
                            Reuse Parameters

• SEER rework calculation parameters would
  need revision; many conflicts
  – Will not include in manual
• SLOC conversion factors
  – Report as range
• Modified size conversions
  – Fixes identified



                                               6
                        Effort Normalization

• Backfilling approach reasonable with provided
  data
  – More interviews about missing data would help




                                                    7
                               Multi Builds

• Evaluate approach in future about combining
  build data




                                                8
                         Team Experience

• Iterate on effort multipliers
• Provide guidelines on estimating TXP




                                           9
                   Distribution Percentages

• Will provide domain-specific values for
  estimating effort allocation to phases




                                              10
                     Metrics Manual Outline

• Add guidance on estimating integration effort
  – 3 approaches identified
• Maintenance data available in Summer
• Address non-counted labor hours




                                                  11
                       Application Domains

• Survey taken on failure impacts
• Notes taken to crisp up domain definitions




                                               12

				
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