System and method for supporting production management

A production management supporting method, comprising the steps of:

• specifying, for each of one or more times during a display target period and on a per intra-step and/or inter-step range basis, a retention number as the number of products present at the time on the basis of past record information that includes information as a past record which shows, for each product loaded in a production line in which a plurality of steps are performed, an execution time of each of the steps and that serves as a basis for a diagram chart showing a production situation;
• the diagram chart being a polygonal line graph having a first axis and a second axis perpendicular to the first axis,
• the first axis corresponding to time,
• the second axis corresponding to the steps,
• the diagram chart having a polygonal line for each product for which at least one of the plurality of steps has the execution time belonging to the display target period,
• a point on each polygonal line corresponding to the step and the execution time of the step, and
• the execution time of each of the steps in the past record information being at least one of a starting time and an ending time of the step,
• determining whether or not one or more retention situations in accordance with the retention number specified for each of the one or more times on a per inter-step and/or intra-step range basis include a retention situation satisfying a predetermined requirement;
• and
• performing, when there is the satisfying retention situation, accentuated display of a target portion that is a portion, of the diagram chart, which corresponds to an inter-step range and/or an intra-step range in which the satisfying retention situation has occurred and to a period having the satisfying retention situation.

A computer program for causing a computer to perform the steps of:

• specifying, for each of one or more times during a display target period and on a per intra-step and/or inter-step range basis, a retention number as the number of products present at the time on the basis of past record information that includes information as a past record which shows, for each product loaded in a production line in which a plurality of steps are performed, an execution time of each of the steps and that serves as a basis for a diagram chart showing a production situation;
• the diagram chart being a polygonal line graph having a first axis and a second axis perpendicular to the first axis,
• the first axis corresponding to time,
• the second axis corresponding to the steps,
• the diagram chart having a polygonal line for each product for which at least one of the plurality of steps has the execution time belonging to the display target period,
• a point on each polygonal line corresponding to the step and the execution time of the step, and
• the execution time of each of the steps in the past record information being at least one of a starting time and an ending time of the step,
• determining whether or not one or more retention situations in accordance with the retention number specified for each of the one or more times on a per inter-step and/or intra-step range basis include a retention situation satisfying a predetermined requirement;
• and
• performing, when there is the satisfying retention situation, accentuated display of a target portion that is a portion, of the diagram chart, which corresponds to an inter-step range and/or an intra-step range in which the satisfying retention situation has occurred and to a period having the satisfying retention situation.