| Sampling Factors: |
Location (Not Relevant: The location is the same in each case)
Customer (Not Relevant: There is no differentiation by customer)
Size (Not Relevant: There is no differentiation by size)
Organizational Structure (Not Relevant: There is no differentiation by organizational structure)
Type of Work: Different project types – development, maintenance, testing |
| Sampling Factor Values: |
Development (Type of Work): Development project
Maintenance (Type of Work): Maintenance project
Testing (Type of Work): Testing project |
| Subgroups: |
Testing: Testing project
33 People, 3 Basic Units
– Testing
Development: Development project
201 People, 20 Basic Units
– Development
Maintenance: Maintenance project
109 People, 13 Basic Units
– Maintenance |