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Monitors

Monitors collect data, such as basic transaction statistics or the value of attributes, at certain points in a process.For example, you may monitor for the number of transactions that reach an activity. The activity containing the monitor is not included in the statistics gathered.

Add a Monitor statistic category report element to view monitor results in the Report window after simulation runs. (See Report Elements.)

Display the Monitors Window to complete the procedures in the following table. Choose one of these methods to display the Monitors tab:

Activities with monitors display a monitor icon by default.

Task

Procedure

Add new monitors to a model

On the Monitors tab, click the Add button.

In the table, the Placed column for this entry contains the words not placed, meaning that this monitor is not placed at any activity.

Simultaneously add and place one or more monitors

  1. In the diagram, select an activity.

  2. Place the cursor in the shaded region around the selected shape and click and hold the left mouse button.

  3. Drag the shape to the Drop Activities Here to Create Monitors box in the Monitors tab.

In the table, the Placed column for this entry contains the name of the activity that you dropped in the Monitors tab. The monitor indicator also appears on the selected activity shape. You can change the display of the indicators using the Format Diagram dialog box.

Create and place monitors at multiple activities

Hold the Shift key while you click to select multiple activity shapes in the diagram, then drag and drop them in the Drop Activities Here to Create Monitors box in the Monitors tab.

Place a monitor

  1. In the diagram, select an activity.

  2. In the Monitors window, select a monitor in the list.

  3. Click the Place button.

The name of the activity displays in the Placed column of the selected monitor entry to indicate that the monitor is placed at that activity.

Place a monitor at multiple activities

  1. In the diagram, hold the Shift key while you select activities.

  2. In the Monitors window, select a monitor and click the Place button.

    The Placed column of the monitor entry displays the number of placements for the monitor.

Find placed monitors

In the Monitors tab, select the monitor entry and click the Find button.

The activity shapes for each of the activities at which the monitor is placed are highlighted.

The monitor indicator also appears on each shape with a monitor. You can change the display of the indicators using the Format Diagram dialog box.

Removed placed monitors

  • To remove all placements of a monitor simultaneously, click the monitor entry in the Monitors tab, and click the Remove All button.

  • To remove one or more placements of a monitor, click the monitor entry in the Monitors tab, click the Find button to highlight the activities where the monitor is placed, select one or more activities from which to remove the placement, and click the Remove button.

Removing all placements of a monitor does not remove the monitor. You can still place it on other activities.

Edit a monitor entry

  1. In the table area on the Monitors tab, select a monitor entry.

  • To change the monitor name, click the Name cell and enter a new name.

  • To change the monitor type, click the Type cell and click a monitor type in the list.

  • To change the monitor placements, follow the procedure to Place a monitor.

  • To select an attribute for monitoring, click the Attributes cell and click an attribute name in the list.

  • To change the start point for collecting data, click the From cell and click an activity name in the list. (This applies to Start and Start and End monitors only.)

Delete a monitor entry

In the table area on the Monitors tab, select a monitor entry and click the Delete button.

This removes the definition and all placements of the selected monitor.

Related Topics

Simulation Environment Procedures