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All of the modelling components described above share common
properties which are defined by the so called model. Basically a
model
3.1
is the abstract representation for any kind of transformation of
arbitrary input data into arbitrary output data as depicted in
Figure 3.1.
The model forms the base for more specific variants of
itself. Although itself is never actually used, it defines properties
that are common to all of its descendants, since they inherit these
properties from the model. Moreover, it defines an evaluation
protocol that is shared by all its descendants. As a consequence,
wherever models are expected, arbitrary variants of them can be
used as long as their data ports are compatible.
Fußnoten
- ...3.1
- Historically the idea of models originates from the
Evaluable Entities (EVE) of
VISTA/SFC[55] and has been refined in many respects.
Rudi Strasser
1999-05-27