The Unified Modeling Language (UML) provides a standard notation for modeling object-oriented applications.

RFFlow can be used to draw many different software design diagrams, including database design, UML, Booch OOD, Express G, Gane-Sarson Data Flow, Martin ERD, Rumbaugh OMT, Shlaer-Mellor OOA, Structure Charts, and Yourdan Data Flow.

If you haven't already done so, first download the free trial version of RFFlow. It will allow you to open any chart and make modifications.

Once RFFlow is installed, you can open the above chart in RFFlow by clicking on UML_Software_Design.flo. From there you can zoom in, edit, and print this sample chart. It is often easier to modify an existing chart than to draw it from scratch.

To draw this chart without downloading it, run RFFlow and click on the More Shapes button. Scroll to the Software Design folder and click the plus sign to open it. Click the UML stencil and then click the Add Stencil button.