- Sampling Summary：
（抽样汇总） -
Sampling Factors: Location (Not Relevant: Since all of projects are in same city (Xiamen), location is not a relevant factor.) Customer (Not Relevant: Since customer of all projects are the same government. 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 development projects in the same organization (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.)
Product Domain: Since there are two types of product type, Energy Management and Substation Security, Product Domain is the relevant factor.
Sampling Factor Values: EMS (Product Domain): Software Product of Energy Management SSS (Product Domain): Software Product of Substation Security
Subgroups: A: Software development projects for Energy Management
15 People, 2 Basic Units
– EMSB: Software development projects for Substation Security
11 People, 2 Basic Units
– SSS