Work management device

A work management device for managing a board work line having multiple board work machines for performing work on a board, the work management device comprising:

• circuitry configured to detect that a problem has occurred in any of the multiple board work machines;
• a handling method database configured to accumulate handling methods for problems in a handling method database;
• update handling methods for problems as needed;
• identify an operator to handle the problem;
• extract a handling method for a problem from the handling method database when the problem has occurred;
• and
• indicate to the operator, via a mobile terminal of the operator, the handling method when the problem has occurred,
• wherein, when the problem is resolved after the handling method is indicated to the operator, the circuitry updates the handling method database to increase a handling performance of the handling method, from the handling method database, which resolved the problem;
• and
• wherein the circuitry increases a priority level of the handling method as the handling performance increases.