Abstract: Decision model assembling is an important function of intelligent decision support system. Decision model assembling based on ontology may provide a wealth of semantic information. However, the response speed is still slow as the efficiency of ontology reasoning. This paper presents the thought of assembling based on alternative ontology. The approach may effectively reduce the complexity of ontology modeling. The corresponding algorithm of this approach is designed, and an example is given to illustrate the idea.

Key words: alternative ontology, decision support system, decision model, model assembling