How Resource Available Capacity Score Is Calculated

The Resource Available Capacity score is a measure of a resource's suitability to fulfill a project resource request. The score is the percentage of time that a resource is available to work on a project assignment during the requested time period.

Calendars Used to Calculate Resource Available Capacity Scores

The application uses the resource calendar, and either the project calendar or the hours per day specified on the project resource request, to calculate the available capacity of a resource for a new project assignment. On the project resource request you can select the project calendar to determine the requested hours per day, or specify the number of hours per day if they're different from the project calendar. The resource calendar determines the hours that a resource is available to work each day.

The resource calendar is a schedule of a resource's daily working hours. The number of hours that a resource is available to fulfill a project resource request is the working hours for the day minus the number of hours that the resource is committed to project assignments and nonproject events for that day. Examples of nonproject events are paid time off and training.

Available capacity is calculated only for active project and resource calendars with a schedule type of Elapsed, one workday pattern for 7 days, and one project shift. Alternatively, a predefined standard calendar is available for use as a resource or project calendar.

Note:

The available capacity calculation considers schedule exceptions only from the project calendar.
The effective dates of the project and resource calendars must span the date range of the project resource request for the application to calculate available capacity scores.

How the Resource Available Capacity Score Is Calculated

The application calculates a Resource Available Capacity score as follows.

For the requested time period on a project resource request, determine the working days and number of hours for each day based on either the project calendar or the number of hours per day specified on the project resource request.
Determine the days and number of hours during the requested time period that the resource is committed to project assignments or nonproject events. These are hours that the resource isn't available to fulfill the request.
For each work day in the requested time period, divide the number of available hours for the resource by the number of requested hours in the day, and multiply the result by 100. This determines the resource available capacity for each day, expressed as a percentage.

Note:
The maximum available capacity is 100%, even if the number of available hours for a resource exceeds the number of requested hours for the day. For example, if a resource is available to work 10 hours a day and the request is for 8 hours a day, the available capacity for the resource is 100%.
Divide the sum of the available capacity for each day by the number of days in the requested time period. The result is the Resource Available Capacity score for the project resource request.