A display method to visualize a manufacturing status of products each manufactured through processing performed by a plurality of apparatuses included in a manufacturing line, the display method comprising:
- identifying, for each product to be manufactured in a certain unit, a starting time or an ending time or both of the processing performed on the product by a first apparatus and a starting time or an ending time or both of the processing performed on the product by a second apparatus based on log information of the first apparatus and log information of the second apparatus, the first and the second apparatuses being included in the manufacturing line, the second apparatus performing the processing after the processing performed by the first apparatus, using a processor;
- placing, on a first time axis, the starting time or the ending time or both identified for each product in the first apparatus, the first time axis indicating the starting time or the ending time or both of the processing performed on each product by the first apparatus, using the processor;
- placing, on a second time axis, the starting time or the ending time or both identified for each product in the second apparatus, the second time axis indicating the starting time or the ending time or both of the processing performed on each product by the second apparatus, the second time axis being in parallel with the first time axis, using the processor;
- placing, for each product, a line that connects a starting time or an ending time placed on the first time axis and a starting time or an ending time placed on the second time axis, using the processor;
- and
- displaying a first line and a second line such that the first line and the second line are allowed to overlap with the placed lines or displaying an area interposed between the first line and the second line such that the area is in a visible state and is allowed to overlap with the placed lines, the first line placing and connecting, in accordance with whether each of the first time axis and the second time axis indicates a starting time or an ending time of the processing performed on the product, a time at which the processing performed on a first product by the first apparatus is to start or end and another time at which the processing performed on the first product by the second apparatus is to start or end, the times being times when the first product is, in an ideal period of the processing, processed by both of the first and the second apparatuses, the first product being manufactured first in the certain unit, the second line placing and connecting, in accordance with whether each of the first time axis and the second time axis indicates a starting time or an ending time of the processing performed on the product, a time at which the processing performed on a second product by the first apparatus is to start or end and another time at which the processing performed on the second product by the second apparatus is to start or end, the times being times when all of the products included in the certain unit are, in an ideal period of the processing, processed by both of the first and the second apparatuses, the second product being manufactured last in the certain unit, using the processor.