Intended learning outcomes: Describe the revision of the MPS according to actual splitting of family demand as given by the FAS. Explain the production plan and its corresponding MPS at the assembly level.
Continuation from previous subsection (7.2.1b)
The associated final assembly schedule (FAS) modifies the MPS according to the actual customer orders. If in January the actual demand is 60 units of P1 and 40 units of P2, then the MPS for February must be revised to replenish first the excess use of P1 in January (20 units). Figure 7.2.1.3 shows this situation, extended for several months.
Fig. 7.2.1.3 Revision of the MPS according to actual splitting of family demand as given by the FAS.
Figure 7.2.1.4 shows the second possibility for the level of the master production schedule (MPS): the MPS at the assembly level. We suppose a quantity per of 2 and, again, an equal option percentage — with a deviation of 20% — for each variant-specific assembly V1 or V2. Again, the example does not consider safety demand for product family P. In this case, there is no need to deal with the (tricky) negative demand of general assembly G.
Fig. 7.2.1.4 The production plan and its corresponding MPS at the assembly level (example of a product family P with two variants, V1 and V2).
The revision of the MPS according to actual splitting of family demand given by the FAS would result in a table similar to the one in Figure 7.2.1.3.
A planning bill of material is an artificial grouping of items that facilitates master scheduling and material planning (cf. [ASCM22]).
A planning bill of material can facilitate the management of a variant master schedule. A planning bill of material may include historical option percentages of a product family as the quantity per.
A production forecast is a projected level of customer demand for key features (variants and accessories).[note 705].
A production forecast is calculated by using the planning bill of material.
A two-level master schedule uses a planning bill of material to master schedule an end product or product family, along with selected key features (variants and accessories).
A product configuration catalog is a listing of all upper-level configurations contained in an end-item product family. It is used to provide a transition linkage between the end-item level and a two-level master schedule (cf. [ASCM22]).
Course section 7.2: Subsections and their intended learning outcomes
7.2 Adaptive Techniques
Intended learning outcomes: Explain techniques for standard products with few variants as well as techniques for product families.
7.2.1 Techniques for Standard Products with Few Variants
Intended learning outcomes: Present the conventional variant structure for a few, stockable variants.
7.2.1b The Variant Master Schedule at the End Product Level
Intended learning outcomes: Explain the production plan and its corresponding MPS at the end product level.
7.2.1c The Revision of the Variant Master Schedule According to Actual Splitting as Given by the FAS, and the Variant Master Schedule at the Assembly Level
Intended learning outcomes: Describe the revision of the MPS according to actual splitting of family demand as given by the FAS. Explain the production plan and its corresponding MPS at the assembly level.
7.2.2 Techniques for Product Families
Intended learning outcomes: Present the super bill of material with option percentages x1, x2,…, xn. Describe the production plan and its corresponding MPS at the assembly level, using the example of a product family P with a number of variants in the order of the total demand quantity for the product family.
