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Supply Chain Glossary - O

Supply Chain Glossary - O

option

A choice that must be made by the customer or company when customizing the end product. In many companies, the term option means a mandatory choice from a limited selection. See: feature.

A form of independent demand item management model in which a review of inventory on hand plus on order is made at fixed intervals. If the actual quantity is lower than some predetermined threshold, a reorder is placed for a quantity M - x, where M is the maximum allowable inventory and x is the current inventory quantity. The reorder point, R, may be deterministic or stochastic, and in either instance is large enough to cover the maximum expected demand during the review interval plus the replenishment lead time. The optional replenishment model is sometimes called a hybrid system because it combines certain aspects of the fixed reorder cycle inventory model and the fixed reorder quantity inventory model. See: fixed reorder cycle inventory model, fixed reorder quantity inventory model, hybrid inventory system, independent demand item management models.

Typically, scheduling extra quantities of a master schedule option greater than the expected sales for that option to protect against unanticipated demand. This schedule quantity may only be planned in the period where new customer orders are currently being accepted, typically just after the demand time fence. This technique is usually used on the second level of a two-level master scheduling approach to create a situation where more of the individual options are available than of the overall family. The historical average of demand for an item is quantified in a planning bill of material. Option overplanning is accomplished by increasing this percentage to allow for demands greater than forecast. See: demand time fence, hedge, planning bill of material.

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