How it works – overview
ItemPlanning – BOM (Production bill of materials) is the tool to see the shortage impact on end-items and fabricated parts components and raw materials for a required quantity demand on a specific date.
A variety of item status information and bill of material/routing explosions can be made by the user with the purpose of seing the exact and just absolutely necessary information.
When shortages are identified the user can create order proposals directly from this solution.
ItemPlanning – BOM is used by production planners when working with the planning of bill of material items.
Click on the picture to enlage
*If you want a graphical presentation of the capacity calculation performed by ItemPlanning, you can select the Line menu Item “Show Capacity Load”.
General functionality can easiest be explained by considering a request from a customer as in the following:
- A customer can ask for a specific quantity of an Item at a specific date.
- You enter the Required Quantity and the Required date, and ItemPlannning will now calculate your options.
- As a result of the calculations, ItemPlanning will show you an Available Date (cap.) which is the first date where you can deliver the required quantity, given all other parameters and data.
How does it work.
ItemPlanning calculates buttom-up, that is items on the lowest levels are considered first.
Are they on stock in sufficient quantity ? If not when can they be in stock given existing purchase orders and Lead times for new orders placed today.
ItemPlanning will require everything in stock before you can start a production. The last date, when all purchased items are in stock is the date shown as Available Date (mat.).
Based on that date, ItemPlanning will then calculate the operation proces, buttom-up. Lower-level semi-finished products first and final product last.
For each operation line, a starting date and time will be set according to component availability and ending of previous operation on same or lower levels.
Then based on the capacity calenders for each resource, an ending date and time is calculated and transferred to the next operation as the starting point.
Generally speaking, ItemPlanning is calculating in the same manner as BC when you run a Release Production order with starting date Today.
However, as BC calculation normally is done backwards based on a Due Date and ItemPlanning is always calculating forwards, there will logically be differences between the results from BC and ItemPlanning.
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