Conceptual modelling of knowledge-based systems using UML

Conceptual modelling is an important aspect in designing systems. However, the use of conceptual models in knowledge-based system (KBS) is limited as there is no particular consensus on which modelling language should be used and most of these systems are developed in a 'problem to code' manner. This paper focuses on the use of a Unified Modeling Language (UML) Profile for conceptual knowledge modelling. The profile is created using the profile extension approach of UML and is based on the XMF (executable Modelling Framework). An example of modelling a KBS based on the Ottawa Ankle Rule demonstrates the use of the profile.