||Location (Not Relevant: Software development work is performed in only one location: Nanjing.)
Customer (Not Relevant: No effect on implementation. All products are developed for education industry.)
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: There are two types of projects, Development and Maintenance.
|Sampling Factor Values:
||Development (Type of Work): New development projects.
Maintenance (Type of Work): Maintenance projects.
1: Two projects belong to Development type.
24 People, 2 Basic Units
2: Two projects belong to Maintenance type.
21 People, 2 Basic Units