||Location (Not Relevant: the OU has only one location, in Beijing)
Customer: include internal customers and external customers, and the validation processes are different
Size (Not Relevant: the size of basic units does not affect the way works are performed, and vary in a limited scope)
Organizational Structure (Not Relevant: matrix management is used across the OU. Organizational Structure does not play an important role)
Type of Work (Not Relevant: the OU has only one type of work, researching and developing highway systems)
|Sampling Factor Values:
||Internal (Customer): Researching and developing projects oriented internal customers.
External (Customer): Contract projects oriented external customers.
SG1: Researching and developing projects oriented internal customers
12 People, 3 Basic Units
SG2: Contract projects oriented external customers
29 People, 4 Basic Units