Start and End Percentage (hours)
Percentage values are assigned when the activities start and conclude. In other words, when the activity is initiated, it is assumed that a particular percentage of the project has been completed.
- Planned Value
Budget hours are released, based on these percentages during the scheduled start date and scheduled end date period, respectively, (based on the last approved baseline).
- Earned Value
Earned values are assigned during the actual start date and actual finish date period (as defined in the Activities (tppss2100m000) session).
Example
- Activity approved Baseline Scheduled Start Date: January 1, 2015
- Activity approved Baseline Scheduled Start Date: March 21, 2015
- Budgeted Hours: 10000 hours
- The EVM is Start and End Percentage. So, the percentages must be specified in the Activities (tppss2100m000) session.
- Start Percentage = 70%
- End Percentage = 30%
- Time Phase Budget in Period 1 (January 2015) = (10000 * 70)/100 = 7000 hours
- Time Phase Budget in Period 2 (February 2015) = (10000 * 0)/ 100 = 0 hours
- Time Phase Budget in Period 3(March 2015) = (10000 * 30)/ 100 = 3000 hours
For Earned Value, actual start and periods are considered. If the activity starts in February and concludes in April:
- Earned Value for January: 0
- Earned Value for February: 7000 hours
- Earned Value for March: 0 hours
- Earned Value for April: 3000 hours
If the actual hours incurred in January 2015 is 3300 hours:
- Hours Variance = 0 – 3300 = -3300 hours
- Schedule Variance = 0 – 3875 = -3875 hours