Title: 		MTT: Model Transformation Tools
Author: 	P.J. Gawthrop
Keywords: 	Bond graphs; modelling; computer tools
Abstract:
In the context of software, it has been said that one good tool is
worth many packages. UNIX is a good example of this philosophy: the
user can put together applications from a range of ready made tools.

This paper describes the application of this philosophy to dynamic
system modelling embodied in  MTT - a set of Model Transformation Tools
each of which implements a single transformation between system
representations.


System representations have two attributes: 
	a Form: eg acausal bond graph, differential algebraic, linear 		
		state-space etc.
	a Language: eg Fig, Matlab, LaTex, Reduce, postscript etc.

Transformations are accomplished using appropriate software (eg Prolog,
Reduce) encapsulated in UNIX Bourne shell scripts. The relationships
between the tools are encoded in a Make File; thus the user can specify
a final representation and all the necessary intermediate
transformations are automatically generated.