Engineer to Order (ETO)
To explain engineer to order first we should explain make to order (MTO). MTO involves having all the components available along with the engineering designs, but the product is not actually specified. The finished product from this system is partially one of a kind, but not entirely one of a kind because the final product is not usually designed from a basic specification. The engineer to order is an extension of the MTO system with the engineering design of the product being almost totally based on customer specification. The same characteristics apply here as to the case of MTO, but customer interaction is even greater. True one of a kind products are engineered to order. (Higgins, Le Roy, Tierney; Manufacturing planning and control: beyond MRP II; pg. 13,14)
Bill of Capacity
The capacity bill procedure is a rough-cut method providing more-direct linkage between individual end products in the MPS and the capacity required for individual work centers. It takes into account any shifts in product mix. Consequenty, it requires moredata then the CPOF procedure. A bill of materials and routing data are required, and direct labor-hour or machine-hour data must be available for each operation. (Vollman, Berry, Whybark, Jacobs; Manufacturing Planning and Control for Supply Chain Management; pg 341)
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