Dependent vs. independent

This option is used when you need to evaluate mutually exclusive options, and is only applicable for incremental ringfences. An example of how it works is given below.

Consider three projects: A, B and C.

The dependent incremental ringfence will be calculated as follows:

A = A

B = (A+B) – A

C = (A+B+C) – (A+B)

While the independent incremental ringfence will be calculated as follows:

A = A

B = (A+B) – A

C = (A+C) – A