A simulation device comprising: a simulation section configured to simulate based on a production plan of a board product: - an operating status of a board work machine (WM) configured to perform predetermined board work on a board and to produce the board product, and - an operating status of an article moving device configured to supply an article (ARO) needed for production of the board product to the board work machine, wherein the article moving device includes a control device configured to control movement of the article moving device, the production plan including type and number of needed articles, type and number of board products, wherein the production plan being input and changeable by an operator; an output section configured to output time series information indicating a temporal change of the operating status of the board work machine and a temporal change of the operating status of the article moving device, which are results of simulation by the simulation section; and a display section configured to, based on the outputted time series information, display - a first operating time zone (TD1) in which the board work machine is operated and a first stop time zone (TN1) in which the board work machine is stopped, and - a second operating time zone (TD2) in which the article moving device is operated and a second stop time zone (TN2) in which the article moving device is stopped on a display device in a timeline in a comparative manner. a simulation section configured to simulate based on a production plan of a board product: - an operating status of a board work machine (WM) configured to perform predetermined board work on a board and to produce the board product, and - an operating status of an article moving device configured to supply an article (ARO) needed for production of the board product to the board work machine, wherein the article moving device includes a control device configured to control movement of the article moving device, - an operating status of a board work machine (WM) configured to perform predetermined board work on a board and to produce the board product, and - an operating status of an article moving device configured to supply an article (ARO) needed for production of the board product to the board work machine, wherein the article moving device includes a control device configured to control movement of the article moving device, the production plan including type and number of needed articles, type and number of board products, wherein the production plan being input and changeable by an operator; an output section configured to output time series information indicating a temporal change of the operating status of the board work machine and a temporal change of the operating status of the article moving device, which are results of simulation by the simulation section; and a display section configured to, based on the outputted time series information, display - a first operating time zone (TD1) in which the board work machine is operated and a first stop time zone (TN1) in which the board work machine is stopped, and - a second operating time zone (TD2) in which the article moving device is operated and a second stop time zone (TN2) in which the article moving device is stopped - a first operating time zone (TD1) in which the board work machine is operated and a first stop time zone (TN1) in which the board work machine is stopped, and - a second operating time zone (TD2) in which the article moving device is operated and a second stop time zone (TN2) in which the article moving device is stopped on a display device in a timeline in a comparative manner. <EOS>