Production sequence optimizing method and production sequence optimizing system

A production sequence optimizing system comprising:

• a production line including an electronic component mounting machine configured to put electronic components on a board;
• and
• a control device that classifies a plurality of production programs which are continuously executed using the production line into a plurality of groups which share resources used for production and optimizes an execution order of the plurality of production programs,
• wherein the control device is configured to perform:
• a resource number counting step of counting a number of all resources held in stock;
• and
• a resource allocation step of, in a case where the number of all resources is less than a sum of a number of resources required for an N-th group and a number of resources required for an (N+1)-th group where N is a natural number, allocating the resources to each of the groups on the basis of the number of all resources, the number of resources required for the N-th group, and the number of resources required for the (N+1)-th group, wherein
• the resources include feeders, each including a tape having the electronic components and being detachably provided in the electronic component mounting machine,
• when the feeders are individually replaced in the electronic component mounting machine in a first setup operation, the feeders are allocated to each of the groups in the resource allocation step in a first manner, and
• when the feeders are collectively replaced in the electronic component mounting machine in a second setup operation different from the first setup operation, the feeders are allocated to each of the groups in the resource allocation step in a second manner different from the first manner.