CONNECTIONS ARE SHOWN GRAPHICALLY 

This is the Workpad where connections are displayed.   It is multi-layered.

mcworkpadS 
click the image to enlarge.


The Workpad has many features for the entry and visualisation of connections as you can see in these links:

   Tracing Connections.  How you can follow connections in the model and so eliminate the need to constantly find new drawings.
   Making Connections.  How you connect.  This can be done for cables, cores, wiring, fibres, signals and flows.
   Formatting.  How you can control the appearance of the graphics to allow you to make drawings in conventional formats.
   Publishing.  How simply you can produce drawings as PDF files or to export to CAD files.