| On the basis of comprehensive analysis of the Data Warehouse technology and the requirement of decision-making of the Safety Supervising Bureau, this paper conceives of a pattern of OLAP application that employs "thin-client" environment and browser interface. This pattern possesses strongpoint such as low investment, easy maintenance, easy operation, advanced structure and so on, and is suitable for middle-small enterprises* data warehouse based Decision Support System. This paper implements the design of Safety Supervising Data Warehouse's frame structure, main functions and implement policy, settles key technology including data collection, data storage, data analysis and data representation, emphasizing realizes the OLAP and dynamic multi-dimension report form of the Safety Supervising Bureau's train accidents, which shows that the designed system is operated conveniently, can obviously improve the efficiency and quality of accidents analyzing, establishes the bases of theory, system pattern and technology for establishing the Railway Safety Supervising Decision Support System. |