ProcessModel Lite 1.0 - Version 1.0 ProcessModel Lite is an add-in for Visio 5.0 (Standard, Technical, or Professional) and later. It animates as well as simulates Visio diagrams. Output reports can provide information such as cycle times, cost, or bottleneck analysis of your process flow. A simulation stencil and template are included to make it easy to create simulation diagrams.