I may be barking up the wrong tree but maybe someone can help me. I am using Primavera 5.0. I have created a test project to work out some solutions for a real project later on.

I have six activities and one summary level activity. I also have one resource assigned to the summary level activity at $1.00 per hour. The other six activities are linked in series with a duration of 20 days each. Also, I have set the summary activity to physical percent complete as percent complete type.

Ultimately what I am trying to do is use EVA data to plot s curves. My company and project team are not interested in seeing s curves in dollars or units instead they want to see s curves with planned percent complete, actual percent complete and estimate to complete the project, 3 curves. What I am thinking is to take s curves that are produced in dollars and convert them to a relative percent complete. I am currently using data from the Activity Usage Spreadsheet to get EVA data.

The problem that I have encountered in playing around with this scenario is that as the remaining duration of the summary activity increases the earned value for month # one goes down. FYI , I did make a baseline at the start of the project. The increase in remaining duration could be caused by new scope of work, contractor being late, weather, equipment deliveries, etc.

So the question I have is should the schedule be re-baselined every month and which data should I be using to plot s curves to show planned percent complete, actual percent complete and estimate to complete the project. Remember, earned value is calculated as baseline total cost times activity percent complete. If the remaining duration of the summary activity increases so does the total cost but you have to rebaseline the schedule or else EVA calculations are still based on baseline # 1.

Any comments, solutions, ideas, corrections, would be greatly appreciated.

Regards,
Kelly