关键词: 语义网, 本体, 推理引擎, 决策支持系统

Abstract: A semantic Web based reasoning DSS model is introduced，which takes the architecture of Resource Description Framework（RDF） to describe the factors in a special domain，annotates the operation data semantically to form fact base，and reasons on the presetting rules in the rule base to support decision making.The architecture of the model，the procedure of modeling and the reasoning flow of the reasoning engine in the model are also described in detail.A comparison between ordinary DSS models and the new one is made to express the characteristic of the new DSS model.At last an application case based on the model，called Equipment Recommendation System，focused to resolve the problem of equipment recommendation in the domain of construction project，is presented to explain the system architecture of the DSS model and the reasoning procedure.The system provides some experience and mode for designing and developing Semantic Web based application.

Key words: semantic web, ontology, reasoning engine, Decision Support System（DSS）