GRAPH DRAWING DEVICE, GRAPH DRAWING METHOD, PROCESS MANAGEMENT SYSTEM, PROCESS MANAGEMENT METHOD, AND READABLE STORAGE MEDIUM

摘要

[Problem] To easily and reliably extract the cause of malfunction such as that in faulty equipment and evaluate continuity. [Solution] In a graph drawing method, a statistic calculation means (42) and a data placement means (43) function as a statistic display processing unit to display a statistic in which m × n elements corresponding to m (m is an integer) variables and n (n is an integer) variables are arranged in a matrix in a matrix display area and also to display a graph image related to the statistic in a graph display area. The graph drawing method includes a chronological change display process in which, when a value-displayed-in-matrix selection means (44a) selects, on the basis of an input instruction for selecting the statistic corresponding to designated matrix elements, data corresponding to the designated statistic, a chronological change display means (44b) displays the chronological change in the designated statistic in the graph display area (85).