What are the ways to order spare parts?

There are three commonly used electronic ordering methods: electronic ordering book. Electronic order is a written form to record commodity information, including commodity code/name, supplier code/name, purchase price/sales price, etc.

Prerequisites:

(1) Its direct application is only applicable to a single variety. But with a little treatment, it can also be used for joint ordering of several varieties.

(2) It is not only suitable for stochastic demand, but also suitable for deterministic demand. According to different demand types, specific application forms can be derived, but their application principles are the same.

(3) It is suitable for B-class and C-class commodities with a large variety, less average capital occupation and just good general management.

Determination of order cycle:

The general ordering cycle is determined according to experience, mainly considering the cycle time of making production plan. Monthly or quarterly inventory inspection cycle is often used, but the formula for calculating economic order quantity can also be used to determine the most favorable order cycle for inventory cost.

Order cycle = 1/ order times =Q/D Determination of target inventory level The target inventory level is the demand within the time to meet the order cycle plus the lead time. It consists of two parts: one is the average demand in the lead time, and the other is the insurance reserve to ensure the supply probability according to the service level.

Baidu encyclopedia-regular ordering method