ABSTRACT
Modelling is an art rather than a science. All that I can give here are a few commercial and technical tips on how to approach it.
In order to make the exercise more concrete, I decided to use a simple device as an example but selecting a suitable device was not easy-I looked for something for which the DMTF did not already have a model (thereby ruling out almost everything to do with computers or IP routers), something which all readers would readily understand (thereby ruling out the more esoteric telecommunications devices), something that was reasonably complex and provided services (thereby, unfortunately, ruling out my toaster) and something that was sufficiently uncomplicated that the model could be largely complete.
