I.1. Overview

The PN Toolbox is compatible with all versions of MATLAB, from Realease 12 to Release 2008b. It is equipped with an easy to exploit GUI which allows drawing PNs and permits simulation, analysis and synthesis. This GUI becomes operational once the command

>> pntool

is entered at the MATLAB prompt.

There are two modes in which the PN Toolbox may be exploited, namely the Draw Mode that allows the user to build a new PN model or modify the properties of an existing one, and the Explore Mode that enables the user’s access to simulation, analysis and design tools.

The GUI exhibits eight control panels (see fig. I.1): Menu Bar (1), Quick Access Toolbar (2), Drawing Area (3), Drawing Panel (4), Draw/Explore Switch (5), Simulation Panel (6), Status Panel (7) and a Message Box (8). Further on, all these panels are described.