modelling using POSD notation

about POSD
A description of POSD, motivation for its creation, and examples of its use can be seen in the pages referenced from its home page.

using the tool
Before you can use the tool you need to enter it. See entry options below. Once you have entered the tool you can use the right button on your mouse to display a list of tool capabilities. You can then use the help capability in this list to see explanations of the other capabilities.

entering the tool
The tool requires various system capabilities to run. If you have not already installed these capabilities, see below. The way you enter the tool will depend on which implementation of these capabilities has been installed.

installing the tool
Before reading this page you will already have downloaded the directory POSDRELEASE and unzipped it. You may find it easier to understand the following if you have looked at the architecture of the tool, as shown below.
architecture of the tool

    start.html
  |
    global.html - invoked by start.html and by posd.svg
    |
    posd.aspx - invoked by global.html
    |
    posd.cs - invoked by posd.aspx
    |
    posd.xsl - invoked by posd.cs
    :
    posd.svg - generated by posd.xsl and invoked by posd.aspx