Process model automatic generation system and process model automatic generation method

A process model automatic generation system, comprising:

• a process flow generation unit configured to automatically generate a process flow for each of a plurality of products based on work performance data collected at a production site, the work performance data including a product identifier that uniquely identifies a product, a process identifier that uniquely identifies a process, and a work date and time indicating a date and time when the process is executed;
• a synthesis flow generation unit configured to generate a synthesis flow by combining a plurality of the process flows;
• a production system automatic determination unit configured to determine a production system between processes based on a structure of the synthesis flow;
• a synthesis flow restoration unit configured to generate a process model including a flow shop and a job shop based on the determined production system;
• a work performance data accumulation unit configured to accumulate the collected work performance data;
• and
• a work performance data selection unit configured to select a target to be used as a material for generating a process model from work performance data stored in the work performance data, wherein
• the synthesis flow generation unit generates the synthesis flow using the work performance data selected from the work performance data,
• when a closed path exists in a flow in generating the process flow, the process flow generation unit executes a preprocess for deleting a part of the flow such that no closed path exists in the process flow,
• when a closed path exists in the synthesis flow, the production system automatic determination unit determines the closed path as a job shop, and
• the synthesis flow restoration unit automatically generates the process model by combining the job shop determined by the production system automatic determination unit with the synthesis flow.