In Part 2 of the Schedule % Complete Guide, I’ll show you an example of using Schedule % Complete on a project in P6.Primavera P6 Professional is likely the most-used construction project management software package around today.
The following diagram shows Schedule % Complete of a sample WBS Element with two Activities in different Data Dates. Pulling Schedule % Complete together for WBS and Activities To summarize, Schedule % Complete for Activities is based on time, while its value for WBS Elements is based on costs. Baseline Costs before the Data Date (PV).The above descriptions show that the Schedule % Complete of the WBS Elements depend on the following: The following diagram shows Schedule % Complete of a sample WBS Element for different Data Dates: Please have this in mind that all the mentioned parameters are derived from baseline and not from current schedule the WBS bar shown in these figures is the baseline schedule of the WBS Element and the costs are the baseline costs of the WBS Element. We can now formulate the calculation of Schedule % Complete for WBS Elements as: The total baseline cost is called Budget At Completion or BAC for short. In the world of Earned Value, the costs before the Data Date are called the Planned Value, or PV for short (Also called BCWS – Budgeted Cost of Work Scheduled). The Schedule % Complete of the WBS Element will be the ratio of the Baseline Costs before the Data Date to the Total Baseline Cost. These costs are aggregated to the WBS level, and the time-phased cost of the WBS Element will be calculated automatically. Oracle Primavera will show you how costs are then planned for each day of the Activity. Resource assignment hours and costs are, by default, spread uniformly over the duration of the activity (but you may apply a Resource Curve to alter this).
When you assign resources and expenses to activities, each activity will receive a calculated Total Cost. How Schedule % Complete is Calculated for WBS Elements Does not factor in any Activities’ Schedule % Complete values.However Schedule % Complete for WBS Elements is: But, as in scenario 2, the three Activity values which are all less than 50% could never have a weighted average more than 50%.Īs you saw before, the Schedule % Complete of the Activities is time-based. You might expect it to be the rollup value of the underlying Activities (a weighted average for example). What is going on here? How is Schedule % Complete calculated in each scenario?Ī WBS Element’s Schedule % Complete is calculated in a completely different way. In this scenario, the Sample WBS Element has three Activities with Schedule % Completes less than 50%, but the Schedule % Complete of the WBS Element is 75%. How are these calculations possible? The Sample WBS Element has three Activities, they all have Schedule % Completes greater than zero, but the value for Sample WBS Element is 0! Before I reveal the answer, here’s a contrasting scenario. Let’s start by reviewing 2 possible scenarios: Scenario 1 For Activities, Schedule % Complete is strictly calculated based on:Īnd now, the story of how Schedule % Complete is calculated for WBS Elements. The following diagram shows the Schedule % Complete of a single Activity for different Data Dates:Īnd that’s all for the activities it has nothing to do with the current schedule, the resource curves, the costs, etc. Here’s a formula to calculate Activity Schedule % Complete: Otherwise, Schedule % Complete would show what percentage of the Baseline duration is passed by the Data Date.
When the Data Date is earlier than the Baseline Start date, Schedule % Complete is zero, when it’s after the Baseline Finish data, Schedule % Complete is 100%. It’s simple just take a look at the following figure. Schedule % Complete for ActivitiesĪnd now, let’s start the story with how Schedule % Complete is calculated for Activities. This is the source of the most common problems people have with this field. The second thing is that this field is calculated differently for Activities than for WBS Elements. As a result, it is calculated based on the Project Baseline and the Data Date it has nothing to do with the current schedule. The first thing to mention is that Schedule % Complete deals with planned progress. Two important products of maintaining schedules are planned progress and actual progress of a given time you want to know how much you’ve done so far and compare it with how much you were supposed to do so far, in order to reach project targets. Schedule % Complete is one of the many percent completes you have in Primavera P6 and we’re going to have a complete look at what it is and how it is calculated.
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