| Sampling Factors: |
Location: There are three locations involved in the appraisal – Mexico City, Monterrey, and Aguascalientes.
Customer (Not Relevant: Softtek does not vary the way it performs its work based on different customers. Some minor tailoring may be applied, but the process steps are the same.)
Size (Not Relevant: Softtek does not vary the way it performs its work based on the size of the engagement. Tailoring may be applied, but the process steps are the same.)
Organizational Structure (Not Relevant: All three sites report into the same organization.)
Type of Work: Softtek has Waterfall and Scrum projects that align with the 3 geographical locations. The projects performed in Mexico City are Waterfall projects, while the other two locations are conducting Scrum projects. |
| Sampling Factor Values: |
Mexico City (Location): Projects conducted in Mexico City.
Monterrey (Location): Projects conducted in Monterrey.
Aguascalientes (Location): Projects conducted in Aguascalientes.
Waterfall (Type of Work): Projects that use a Waterfall-like life cycle.
Scrum (Type of Work): Projects that use Softtek”s version of the Scrum life cycle. |
| Subgroups: |
Mexico City/Waterfall: All projects conducted in Mexico City are Waterfall projects, so the two factors are redundant.
785 People, 4 Basic Units
– Mexico City
– Waterfall
Monterrey/Waterfall: All projects conducted in Monterrey use a Waterfall-like life cycle.
50 People, 3 Basic Units
– Waterfall
– Monterrey
Aguascalientes/Scrum: All projects conducted in Aguascalientes use scrum.
78 People, 2 Basic Units
– Aguascalientes
– Scrum |