ABC control

When parts inventory and commodity stock and the customer etc. are managed, three classes are set the management object according to the importance, doing, the method of managing effectively e.g., correspondence is changed every that class.

Originally being something which you devise the H F dickey of the United States GE (H. Ford Dickie) stock management (materials order) as method in 1950 age, stock list of items dividing into A B C three classes, those which respectively do appropriate stock management by storage method and the fact that it changes inventory level and supplement system etc..

It divides stock list of items,with ABC analysis. If all list of items (type) the higher rank 20% whose inside criticality is high (A class) preponderantly it manages strengthens the list of items group, the general tendency that (Pareto's law) it has been basedyou can obtain80% improvement effect. However, the Pareto curved line which shows the relationship of list of items between the improvement effect (the curved line which is shownin the pareto diagram), being to differ depending upon industry and list of items it is necessary to verify securely.

As for index and the improvement step which measure criticality of element item, you can think various ones with field of application and purpose.

For example if it is stock management, there is many a thing where "the transaction amount" of year and the "use amount" are used as an index, but "" per unit there is a cost which becomes necessary by the case where cost "" stock turnover factor "" order lead time "" necessary storage cost "" use possibility "defect item occurs" and so on. In addition, "" no matter what producing the defect item, the part load form to which is not good "is large, those like the part where time bets on management" have the necessity making artificially A class the numerical analysis with ABC analysis regardless of, to consider.

In this way, when the ABC class dividing it goes, the management method of responding to that is selected. For example applying fixed time ordering system vis-a-vis the list of items of the A class which is the important item, grasping the allowance accurately in every period, e.g., it orders, inventories, grasps accurate quantity more frequently than B C class securely it is thought. Vis-a-vis that, the measure that is taken you take quantitative order system in B class, at the point in time when it is less than safety stock level it measures you order, you make simple management system such as the unit control where management cost is not required vis-a-vis C class.

Even with the physical distribution, it can utilize in management and layout of warehouse physical distribution center and examination of transportation delivery system. For example as for the item of A class the item of B C class every time delivers in the place where it is close to utilization area with stock, conversely A class e.g., commercial distribution center is utilized, questions B C class to a manufacturer direct delivery and can think with the ? callous.

With sale marketing, the classified by commodity, the classified by customer, classified by section, the classified by person in charge, day of the week and classified by day of the week, the gross sales classified by time zone, the number and customer unit cost etc. of customers you sell to index and, analyze degree of contribution, you can think with the question ? callous which is made to reflect on counter constitution and sale method and sales promotion and order method.

However, C class commodity (it dies and as a method of merchandising, therefore the muscle commodity) with saying, always is correct with it does not limit that it cuts. It is necessary to consider the possibility the customer such as the distantly ? because the stock is bad.