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When a ``new model'' for Athena is proposed, it should be described in terms of the three components described in this document: system packs, installation software and locker software. It should be pointed out where the new model is different. When there are differences in the system packs, Figure 1 should be used to illustrate which subsets are different. This will demystify the developer's perspective of the new model.

Of course, the new model should also be described from the user's perspective, i.e. what the workstation looks like when you login. A straightforward change from the developer's perspective may result in a radically different model from the user's perspective, and vice versa.

Bruce R. Lewis
Mon May 19 16:06:37 EDT 1997