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- This is a layered model of system construction (design) where a
single component references others only through their
(public/export) interfaces.
- The horizontal structure relates different components of same
realm that can play the same role in the same layer.
- The vertical structure relates the requirements and needs of
the different layers.
- 3C model is an example of this structure, though terminology
is not common in SE community.
- See Goguen's LIL/OBJ for formal treatment and
deChampeaux & Lea for adaptations and extensions for OO
systems design.
Doug Lea
Sat Apr 8 09:58:22 EDT 1995