Building Cost Estimating Relationships for Acquisition Decision Support

For many years, there have been efforts to collect data from multiple projects and organizations
Data Analysis Center for Software (DACS)
Software Engineering Information Repository (SEIR)
International Software Benchmarking Standards Group (ISBSG)
Large Aerospace Mergers (Attempts to create company-wide databases)
USAF Mosemann Initiative (Lloyd Mosemann Asst. Sec. USAF)
USC CSSE COCOMO II repository
DoD Software Resources Data Report (SRDR)
Purpose: to derive estimating relationships and benchmarks for size, cost, productivity and quality
All have faced common challenges such as data definitions, completeness and integrity