Well done so far. You are nearly ready to unveil your Secondary Estimate for the size of your Programme Management Office (PMO). I will assume, in my example, that, for all Functional Areas, I am facing Medium Complexity and Low Automation. Hence this will produce a small increase for each Functional Area.
You can see in Table 6 below the 'Movement' factors (which differ in the model depending on the Functional Area) and also the original estimate and the new estimate using the 'Movement' factors.
TABLE 7 - Before and After Estimates
| Functional Area |
Apportionment |
Normalised Estimate |
Large Decrease |
Small Decrease |
No Change |
Small Increase |
Large Increase |
Secondary Estimate |
| Measurement and Analysis |
9% |
0.89 |
-50% |
25% |
0% |
25% |
50% |
1.11 |
| Status Reporting |
9% |
0.89 |
10% |
5% |
0% |
5% |
10% |
0.94 |
| Resource Management |
10% |
0.99 |
40% |
20% |
0% |
20% |
40% |
1.19 |
| Issue & Risk Management |
11% |
1.09 |
10% |
5% |
0% |
5% |
10% |
1.14 |
| Change Control |
10% |
0.99 |
-10% |
-5% |
0% |
5% |
10% |
1.04 |
| Financial Management |
13% |
1.29 |
-60% |
-30% |
0% |
30% |
60% |
1.67 |
| Project Scope & Definition |
9% |
0.89 |
-50% |
-25% |
0% |
25% |
50% |
1.11 |
| Governance / Organisation |
13% |
1.29 |
-80% |
-40% |
0% |
40% |
80% |
1.80 |
| Plan set up, maintenance & tracking |
11% |
1.09 |
-30% |
-15% |
0% |
15% |
30% |
1.25 |
| Deliverable Management |
7% |
0.69 |
-50% |
-25% |
0% |
25% |
50% |
| 0.87 |
The final analysis, for my example, shows that before using the more detailed model my
High-Level Estimate was 10.1 FTEs (which would correlate to a headcount of 9 people if you assume approx 10% overtime). After the
Secondary Estimate we have a total of 12.1 FTEs (this would correlate to a headcount of between 10-11 people depending on your overtime estimate).
So by now you should have created your first estimate for the size of your PMO. But you may still have some questions...
