KNOWLEDGE ENGINEERING USING MULTILEVEL FLOW MODELS
Jan Eric Larsson · 2000
Multilevel flow models (MFM) describe goals and functions of a technical system. The goals are the objectives of running the system, and the functions are its capabilities in terms of mass and energy flows. Thus, MFM describes the intentionality of the target system in linguistic terms. The resulting models can be used for different diagnostic tasks, such as fault diagno- sis, causal explanations, and qualitative predictions. MFM has several properties which makes for a rel a- tively easy knowledge engineering task, compared to mathematical models as used in classical control theory and compared to the rule bases used in standard expert systems. In addition, MFM allows for diagnostic algo- rithms with excellent real-time properties.