||Location (Not Relevant: No process difference with project locations. One location, Beijing city.)
Customer (Not Relevant: The customers of the projects are the same, all are government institutions.)
Size (Not Relevant: No difference in practice implementation. All projects categorized have similar size.)
Organizational Structure (Not Relevant: One organization structure. All projects are under the same command chain.)
Type of Work: Practice implementation is different in project types, there are software customization projects and product development projects.
|Sampling Factor Values:
||Customization (Type of Work): The project in this type customize an existing system to adapt specific requirements given by the customer.
Development (Type of Work): The project in this type develops new product based on customer requirements.
SUB1: The project customizes an existing system for a specific customer.
13 People, 2 Basic Units
SUB2: The project develops a new product.
7 People, 1 Basic Units