||Location (Not Relevant: All projects are produced in Nanjing.)
Customer (Not Relevant: All projects have a commercial customer.)
Size: Small and large size projects.
Organizational Structure (Not Relevant: All projects are from the R&D Department.)
Type of Work (Not Relevant: All projects perform software development work.)
|Sampling Factor Values:
||Small (Size): Projects less than or equal to 35 KLOC.
Large (Size): Projects greater than 35 KLOC
SG1: Small projects.
23 People, 3 Basic Units
SG2: Large projects.
9 People, 1 Basic Units