Need to document how to model for trex

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It can be difficult at first for users to make within an europa reactor the 
separation of intention and belief within the model.

I use quite often the same design patter where the model uses a proxy timeline 
that will maintain the intentions of an external timeline future state from the 
external timeline itself. (lightswitch model uses this pattern where the fact 
of turning the light on or off is managed by e simple europa timeline).

I need to produce a tutorial/documentation about such pattern which explains 
why it is important and how it helps the europa reactor manage the separation 
between intension (the proxy timeline) and belief (the observations on the 
external timeline) in a more robust way.

Original issue reported on code.google.com by fre...@gmail.com on 9 Jul 2012 at 1:19