| Sampling Factors: |
Location (Not Relevant: All projects are working in the same location (and building)in Beijing , so this is not a relevant sampling factor)
Customer (Not Relevant: All the projects are for similar customers.)
Size (Not Relevant: All projects are not significantly different in size, so this is not a relevant sampling factor)
Organizational Structure (Not Relevant: All projects are working under the same organization and management structure, the R&D center, so organizational structure is not a relevant sampling factor)
Type of Work: There are 2 types of project work: , 1 Newly developed. Develop a new product according to customer requirement 2. Project Maintenance: Fix defects based on the existing projects and upgrade some functions so type of work is a relevant sampling factor. |
| Sampling Factor Values: |
Newly developed (Type of Work): Develop a new product according to customer requirement
Project Maintenance (Type of Work): Fix defects based on the existing projects and upgrade some functions |
| Subgroups: |
1: Develop a new product according to customer requirement
17 People, 2 Basic Units
– Newly developed
2: Fix defects based on the existing projects and upgrade some functions
9 People, 1 Basic Units
– Project Maintenance |