Note. An acquisition policy for a single item multi-supplier system

Article Abstract:

A study was conducted to analyze the development of an acquisition policy for a single item multi-supplier system. Optimal solution characteristics were correlated with the use of a single source promoted by just-in-time. A single item Economic Order Quantity framework which supported cost parameters and a finite long-run average capacity was utilized. The acquisition policy for a single item was required to meet constraints related to capacity and minimized costs. Some of the costs considered include total periodic purchasing, inventory carrying, ordering, inventory carrying, and supplier management costs. Results indicated that only one supplier can be selected if no capacity constraints existed. In addition, findings showed at least one supplier to supply less than its capacity.

Research and Development in the Social Sciences and Humanities, Material Handling Equipment Manufacturing, Purchasing Management, Construction and Related Machinery, Management Science, Automated Materials Handling Eqp, Purchasing, Management, Materials handling equipment, Automation, Just in time inventory systems, Just in time systems

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A dynamic programming algorithm for joint replenishment under general order cost functions

Article Abstract:

Using a dynamic programming algorithm, a model is developed to optimize inventory ordering of various types of items from a single supplier. The model developed indicates how many partitions of items within a single supplier's group of items need to be made for reorder purposes, considering cycle times for items within the inventory and for items within partitions of the inventory. Jointly replenishing items, the process of ordering all items offered by a supplier, as a cost saving technique and fixed cycle policies, the sharing of cost minimizing reorder points by partitions of items, are investigated.

Decision-making, Models, Decision making, Factory orders, Industrial suppliers, Production planning

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Deriving the optimal boundaries for class-based automatic storage/retrieval systems

Article Abstract:

One-way travel time can be improved by dividing warehouses into relatively small number of different regions using a class-based automated storage/retrieval system (AS/RS). Optimal boundaries for the AS/RS can be determined through a one-dimensional solution procedure which allows for the accurate delineation of region boundaries for an AS/RS warehouse.

Warehouses

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