Diagrams are easy to make using the Gliffy plugin
A simple online demonstration of the diagram plugin is available at the Gliffy website.
Step 1: To create a diagram, click "Add" in the upper right corner and select "Diagram."
Step 2: Enter the name of the diagram you want to create and click "Create Diagram." The Gliffy editor will launch in the web browser.
Note: Business Process diagrams are in the BPMN area. Select Swimview for a selection of templates that are most familiar.