This UML sequence diagram is one of the examples included in the Trace Modeler distribution.

It was reproduced with permission from www.agilemodeling.com by S. Ambler. Note the alignment of call labels and the thin activations used in this diagram.

The bitmap was created by exporting the file 'from site agilemodeling.trace' in the examples folder of your installation, at 72dpi and 100% scale in png format.