| Sampling Factors: |
Location (Not Relevant: Since all of projects are in same city (Guiyang), 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 similar size of work efforts, size is not a relevant factor.)
Organizational Structure (Not Relevant: Since all of projects are under the same department (Technical Service 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.)
Application Type: Since there are two different software applications, for mobile SNS based sales application and B2B sales application, Application Type is the relevant factor. |