| Sampling Factors: |
Location (Not Relevant: Development projects are all in Beijing, it doesn”t affect the development process.)
Customer (Not Relevant: All the products developed for the high way management company. It doesn’t affect the development process.)
Size (Not Relevant: Size are similar and it doesn’t affect the development process.)
Organizational Structure (Not Relevant: Organizational structures are same in all of the projects and all of the projects are in same organization.)
Type of Work (Not Relevant: All the projects provide development service for customers according to their requirements.)
Technical solution: There are two types of technical solutions: ETC based solution and others. The process of ETC projects is iteration lifecycle. The process of other projects is more like waterfall lifecycle. |
| Sampling Factor Values: |
ETC (Technical solution): Projects adopt ETC related solutions
Non-ETC (Technical solution): Projects using other technical solutions |
| Subgroups: |
G1: Projects using other technical solutions
43 People, 5 Basic Units
– Non-ETC
G2: Projects adopt ETC related solutions
22 People, 3 Basic Units
– ETC |