Ok, let me add this. We deal with estimated Budgets, and estimated Cost which when viewed are ONLY reliable at that point in time (of viewing) because Budgets change and it may take years before total Cost is realized. No ROI because we SELL nothing. Yes, that is what we have to work with, and yet still need to produce a Portfolio Optimization/Analysis/Management. We have total 3000 systems that come up for review(funding) at different points in time. Need some method to recommend continue/hold/eliminate System/or Systems as many as 100 at a time.
