| Sampling Factors: |
Location (Not Relevant: Since all of projects are in same city (Beijing), location is not a relevant factor.)
Customer (Not Relevant: Since all of projects are for commercial customer is not a relevant factor.)
Size (Not Relevant: Since all of projects are small projects, size is not a relevant factor.)
Organizational Structure (Not Relevant: Since all of projects are under the same Center (Product R&D Department), organizational structure is not a relevant factor.)
Type of Work (Not Relevant: Since type of work of all projects is software development, Type of Work is not a relevant factor.)
Lifecycle Model: Since there are two types of development lifecycle model (waterfall, iteration), development lifecycle model is the relevant factor. |