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Abstract
Object orientation is becoming more popular in the design and
implementation of computer based systems. It is a new way of thinking
on how inforrnation should be structured within a computer by viewing
problems as models for real life systems. Modeling is a characteristic in
object oriented approach that views concepts in an abstract forrn. Thus,
the object oriented modeling approach to view the knowledge, may
assist in solving some of knowledge engineering problem. This
research is to investigate how object orientation can be used as an
approach for knowledge engineering.
The OMT is a conceptual software development method uses
three types of models to express important domain related concepts:
object model, dynamic model and functional model. Also, it has a clear
distinction between domain concepts and relationships, dynamic
behavior and functions. In This thesis, we use OMT as a methodology
for KBS development.
OMT together with the formal approach reduces the gap
between forrnal and informal representation both in theoretical basis and
development methodology. The most important and novel contribution
of this research is the definition of representation suitable to represent
object and dynamic models of OMT. We define two forrnal models
one for object model using set theory, and the other for dynamic model
using Petri Net