- Sampling Summary：
（抽样汇总） -
Sampling Factors: Location (Not Relevant: Software development work is performed in only one location: Beijing.) Customer (Not Relevant: No effect on implementation. All customers are internal departments.)
Size (Not Relevant: No effect on implementation. All software development projects have less than 15 employees.)
Organizational Structure (Not Relevant: No effect on implementation. The projects are performed under the same structure.)
Type of Work: Three types of work are classified, New Development, Iteration Upgrade, Maintenance.
Sampling Factor Values: New Development (Type of Work): First development projects. Iteration Upgrade (Type of Work): Development by iteration.
Maintenance (Type of Work): Maintenance projects.
Subgroups: 1: Four projects belong to New Development type.
40 People, 4 Basic Units
– New Development2: Three projects belong to Iteration upgrade type.
30 People, 3 Basic Units
– Iteration Upgrade3: Five projects belong to Maintenance type.
26 People, 5 Basic Units
– Maintenance