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Quota-allocated quantity(할당된 수량) + Quota base quantity(쿼터 기준 수량 )
------------------------------------------------------------------------------- = Quota rating (쿼터 비율 )
Quota(쿼터)
where

· Quota-allocated quantity(할당된 수량 )
= Total quantity from all purchase requisitions, purchase orders, release orders, and scheduling agreement schedules allocated to a given source of supply. (The quantities of quota-allocated planned orders are also taken into account.)
= 모든 구매요청, 구매오더, 릴리즈된 오더, 일정계약들의 전체 수량은 주어진 업체의 수에 따라 나누어 진다. (계획오더에 의해 설정된 쿼터 수량은 계정에 영향을 준다)

· Quota base quantity(기본 수량)
= Quantity used to control the quota arrangement when new sources of supply are included.
= 새로운 업체가 포함되었을 때 쿼터 조정에 사용되는 수량

· Quota(쿼터)
= A number specifying which portion of a total requirement should be obtained from a certain source.
= 각 특정 업체로부터 구매되어야 하는 총 수량의 비율

The source with the lowest quota rating represents the valid source, even if it has a quota rating of 0 (that is, the quota-allocated quantity and the quota base quantity have the value 0). If more than one source of supply has a quota rating of 0, the item with the highest quota is the valid source of supply.
비록, 쿼터비율이 0일지라도(할당수량과 기준수량이 0), 가장 낮은 쿼터비율을 가진 업체는 유효한 업체이다. 만약 하나 이상의 업체가 쿼터비율이 0이라면, 가장 높은 쿼터를 가진 품목은 유효한 업체이다.

According to the formula, the following applies: the higher the quota, the lower the quota rating and the higher the likelihood that the relevant source will be determined as the valid source.
이 공식에 따르면, 더 높은 쿼터, 더 적은 쿼터비율과 더 높은 가능성 있는 업체는 유효한 업체로 선택될 것이다.

Determining the Quota Base Quantity (쿼터 기준 수량 설정)

The quota base quantity is used when you include a new source in an existing quota arrangement.
쿼터 기준 수량은 새로운 업체가 현존하는 쿼터 조정에 포함될 때 사용된다 .

The quota base quantity enables you to prevent the new source from being assigned all requirements (in the form of requisitions or Pos, for example) until its quota-allocated quantity exceeds the quota-allocated quantity of one of the existing sources. This is achieved as a result of the fact that the quota base quantity acts as an additional quota-allocated quantity in the calculation of the quota rating.
쿼터 기준수량은 새로운 업체에 모둔 요구 수량이 설정되는 것을 방지한다 . 그 업체의 할당수량이 다른 업체의 할당수량을 넘을 때까지 작용한다 . 쿼터기준수량이 추가적인 할당량으로 영향을 준다.

Suppose you include a new vendor in an already existing quota arrangement for a material. The existing quota arrangement consists of two vendors, each of which has been allocated 50% of the total requirement of a material over a period. Each of these vendors has a large quota-allocated quantity because a lot of material has been ordered from them to date during the course of the quota arrangement period.
새로운 업체를 이미 존재하는 쿼터조정에 포함하려고 한다고 가정해보자. 이미 존재하는 쿼터조정은 2업체를 포함하고 있고 소요량의 50%을 각각 차지하고 있다. 각 업체들은 높은 쿼터할당량을 가지고 있다 . 왜냐하면 쿼터조정기간 동안 많은 양이 현재 주문되었기 때문이다.

The new vendor is to be assigned a share of the total requirement of the material equal to that of the two other vendors in the quota arrangement. However, in accordance with the formula for the calculation of the quota rating, all subsequent requisitions will be assigned to the new vendor until such time as the latter’s quota rating exceeds the quota rating of one of the other vendors.

However, if the requisitions are to be assigned on an equal basis, that is, as though the new vendor had always participated in the quota arrangement, you must have the quota base quantity for the new vendor determined by the system.

Individual and Collective Calculation

Two procedures for determining the quota base quantity are available in the system:

Individual calculation
Calculation of the quota base quantity of the selected quota arrangement items. Select the items whose quota base quantity is to be calculated and choose Edit ® Base quantities ® Indiv. calculation.

Collective calculation
Calculation of the quota base quantity of all quota arrangement items. Use this procedure if the assignment of individual requirements is to be effected on an equal basis for all sources of supply. Choose Edit ® Base quantities ® Collect. calculation.

As a result of the calculation of the quota basis quantity, the quota rating of a new source exceeds the quota rating of the source representing the valid source (that is, the source to which the next individual requirement is assigned because it has the lowest quota rating).

Calculating the Quota Rating: Example

You wish to include the new vendor C in an existing quota arrangement that has been in effect for a year and previously only included vendors A and B.

Each vendor has the quota set out in the following table:

Quota arrangement for vendors A, B, and C