Understanding Capacity Calculations

This section discusses how PeopleSoft Supply Planning calculates available and required capacity.

Available Capacity Calculation and Resource Class by Time

The system calculates available capacity using this equation if you have defined the Resource Class field as Time:

Available Capacity = Calendar Work Hours × Capacity Multiplier × Availability Percentage

You can navigate to the Work Centers page to define the capacity Multiplier/Units and Availability Percentage fields.

On the Daily Calendar page, you can review the calendar work hours that are defined for the corresponding calendar code.

Available Capacity Calculation and Resource Class by Unit

The method that the system uses to calculate available capacity when you have defined the Resource Class field as Unit depends on how you have defined the bucket for the capacity multiplier. For capacity multipliers that are defined using daily buckets:

Available Capacity = Calendar Work Hour/24 x Capacity Multiplier x Availability Percentage.

For capacity multipliers that are defined using weekly buckets:

Available Capacity = Calendar Work Hour Daily x Number of Days/(24x7) x Capacity Mulitplier x Availability Percentage.

Required Capacity Calculation and Resource Class by Time

If you have defined the Resource Class field as Time, the system sums the capacity for all of the operations on the Required Capacity page to determine total required capacity for a bucket.

Required Capacity Calculation and Resource Class by Unit

The system calculates required capacity using this equation if you have defined the Resource Class field as Unit:

Required Capacity = Total Bucket Task Duration/Total Duration x Remaining Quantity.

Note:

When calculating required capacity, the system also considers the allocation strategy that you define for spreading capacity over multiple buckets for the resource. The system uses the allocation strategy that you define to allocate the entire task to the first bucket, the last bucket, or proportionally across all of the buckets.