(EN) In the present invention, a timing chart (C) indicating an execution history of a component mounting operation is displayed on a display (64). In the timing chart (C), a plurality of marks (M) corresponding respectively to a plurality of substrates (10) are arranged along a time axis (At). Each mark (M) is disposed at a position on the time axis (At) corresponding to the timing when the component is mounted on the substrate (10) which corresponds to the mark (M), and has a width Wt along the time axis (At) corresponding to the work time that was required for mounting the component on the substrate (10) which corresponds to the mark (M). In other words, each of the plurality of marks (M) arranged along the time axis (At) in the timing chart (C) represents the timing and the work time for mounting the component on the corresponding substrate (10).
(ZH) 表示元件安装作业的执行履历的时序图(C)显示于显示器(64)。在该时序图(C)中，分别与多个基板(10)对应的多个标记(M)沿时间轴(At)排列。各标记(M)配置在与向与该标记(M)对应的基板(10)的元件安装作业的执行定时对应的时间轴(At)上的位置，并沿时间轴(At)具有与向与该标记(M)对应的基板(10)的元件安装作业的执行所需的作业时间对应的宽度(Wt)。即，在时序图(C)中，沿时间轴(At)排列的多个标记(M)分别表示针对对应的基板(10)的元件安装作业的执行定时及作业时间。
