Transcript SRDR Data Analysis Workshop Summary Brad Clark Ray Madachy

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
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Barry Boehm
Brad Clark
Sue Koolmanojwong
Gary Hafen
Peter In
Jo Ann Lane
Ilya Lipkin
Tom McGibbon
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Ray Madachy
Arlene Minkiewicz
Ramin Moazeni
Vu Nguyen
Wilson Rosa
Bob Stoddard
Rick Selby
Tom Tan
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Agenda
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Data Reduction
Building an Estimate
Metrics Manual
Application Domains
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Data Reduction
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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)
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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
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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
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Effort Normalization
• Backfilling approach reasonable with provided
data
– More interviews about missing data would help
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Multi Builds
• Evaluate approach in future about combining
build data
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Team Experience
• Iterate on effort multipliers
• Provide guidelines on estimating TXP
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Distribution Percentages
• Will provide domain-specific values for
estimating effort allocation to phases
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Metrics Manual Outline
• Add guidance on estimating integration effort
– 3 approaches identified
• Maintenance data available in Summer
• Address non-counted labor hours
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Application Domains
• Survey taken on failure impacts
• Notes taken to crisp up domain definitions
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