The MPS Rough-Cut Capacity planning function makes it possible for you to determine, at a high-level, how a given MPS plan could impact user-defined key resources. You can define planning routings for end items, or use manufacturing bill of material and routing information to generate them automatically. MPS multiplies the planning routings by open firm and forecasted independent demand to determine the usage quantity (load) for each key resource, by week, and to identify over-capacity conditions (i.e., where load exceeds capacity for a given week).
The plan is called "rough-cut" because it does not consider existing inventory or current manufacturing order, purchase order, or requisition status when calculating load. It looks only at open, independent demand—sales orders, forecasts, and issue reservations. The open quantity for each open independent demand requirement is multiplied by the per-unit quantity and added to the fixed usage quantity for each planning routing record linked to the demand record part. The lead time offset of the planning routing record is subtracted from the demand record’s need date (using shop days if you have selected "Shop Days" as the Lead Time Calculation method in Production Control Settings) to determine when the key resource will be consumed. The usage quantities for each key resource are summarized by week and then compared to the capacity amount defined in the Key Resources application.
The Generate Rough-Cut Capacity Plan process also produces a report showing key resource load and capacity by week. You can run the report to show only key resources and weeks where load is over a certain percentage of capacity.
This function also generates an "Overcapacity" MPS action message for every weekly period where a key resource’s load exceeds its capacity. These "Overcapacity" action messages are visible in the Edit MPS Action Messages screen and the MPS Action Message Report.
Enter, or use Lookup to select, the code of the MPS plan for which you want to generate a rough-cut capacity plan. Enter "P" (for "Production") if you want to see a rough-cut capacity plan for the official production plan. The MPS plan code determines what forecast demand quantities are used when calculating planned load.
If you select any other MPS plan code, the official production plan is not affected, but MPS still considers firmed sales order and reservation demand.
Use the options in this group box to specify which key resources to include in the process and on the report.
From the drop-down box, select the range of key resources to be included: "All" (the default), "One," "Range," "From Beginning," or "To End."
Enter, or use Lookup to select, the key resource identifier that will be the starting point of routings to be printed. If you select "All" or "From Beginning" in the Range Option field, this field is not available.
Enter, or use Lookup to select, the key resource identifier that will be the end point of routings to be printed. If you select "All," "One," or "To End" in the Range Option field, this field is not available.
From the drop-down box, select the sorting criterion:
Key Resource—The report sorts by key resource, then by week.
Resource Type—The report sorts first by resource type, then by key resource, and then by week.
Week—The report sorts by week, then by key resource.
From the drop-down box, select the type of report you want to generate:
Summary (the default)—The report displays capacity and load by key resource and week. It also breaks out load quantity by independent demand type (i.e., sales orders, reservation, and forecast).
Detail—In addition to the information displayed in the summary report, the detail report displays the load broken out by the end item and inventory abbreviation contributing to the weekly load quantity.
Enter the latest scheduled date to include in the report. This is an optional field. If you enter a date in this field, the report excludes weeks with an end date later than the one you specify.
Enter the minimum load percentage (i.e., weekly load divided by capacity) you wish to use to filter weekly figures on the report. For instance, if you enter a threshold of 100%, you will only see load information displayed for weeks where the key resource load equals or exceeds its capacity. If you leave the load threshold as zero, you see all load quantities for all weeks for all selected key resources.
Select this checkbox to include MPS forecasted requirements (including sales and user-defined forecast demand) generated for the selected key resource(s). If it not checked, any load driven by forecast requirements is excluded from the report and the report’s load percentage calculation. However, the forecast load quantity is still stored and available to be viewed in the Rough-Cut Capacity Plan Inquiry.
The Costpoint tables impacted are listed in the following table:
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Screens |
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Generate Rough-Cut Capacity Plan |
Add/Delete: ROUGH_CAP_PLAN MPS_MESSAGE
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