To compute capacity CTPIn the Resource Master Plan (cprmp3501m000) session, there are several fields that give an indication of the resource capacity that is still available at a certain point in time:
The free capacity is computed as total capacity minus total required (used) capacity. The capacity CTP is an indicator of capacity availability that is specifically geared to the process of order acceptance. In the Resource Master Plan (cprmp3501m000) session, the capacity CTP is displayed in two formats:
To compute the free capacity LN calculates the free capacity (see the FreeCapacity field in the Resource Master Plan (cprmp3501m000) session) by subtracting the value in the RequiredCapacity field from the value in the AvailableCapacity field. Cumulative capacity CTP: example Note This example assumes that no capacity CTP reservations need to be made. Current plan period = 3
In this case, the value in period 10 is copied back to periods 9 and 8, so that part of the available capacity in period 8 is reserved to make up for the capacity deficiency in period 10. Moreover, the negative value in period 6 is copied back to all previous periods. This serves to indicate that the available capacity in these periods should be reserved to make up for (part of) the capacity deficiency in period 6. Computing the capacity CTP for one plan
period The capacity CTP for one plan period is a value of zero or higher which indicates how much of the capacity of this period is still available for production. Computing the cumulative capacity CTP A plan period's cumulative capacity CTP indicates how much capacity is still available for production, up to and including this plan period. Note Part of the capacity CTP of a plan period can be reserved as a capacity CTP reservation. If this is the case, this CTP reservation is subtracted from the cumulative capacity CTP.
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