Simulation system and computer-readable medium

A simulation system, comprising:

• a database in which data of multiple workers arranged in a work line of a real space;
• and
• a processing circuitry configured to execute a simulation on a work line of a digital space corresponding to that of the real space based on data of a work plan in the work line of the real space and data stored in the database,
• wherein the data of the multiple workers stored in the database includes data of personal attributes of the multiple workers and data of a personal relationship level between two workers included in the multiple workers, the data of a personal relationship level is calculated based on the data of the personal attributes,
• wherein the data of the work plan in the work line of the real space includes data of work contents of works scheduled to be performed in the work line of the real space,
• wherein, in the simulation, the processing circuitry is configured to search for an assignment pattern of workers satisfying a reference condition in which a work efficiency in a whole work line of the digital space is equal to or greater than a target value, based on the data of the work contents of works to be performed and data related to the personal relationship level between the two workers.