The Research And Application Of Data Warehouse Fuzzy Granularity Model

Data warehouse fuzzy granularity model for thetechnology of data warehouse and on-line analytical processing (OLAP) is widely used and has important theoretical and practical value. In data warehouse logic model design, information data granularity design of the data warehouse performance and function is very important. While the current data warehouse information data granularity size is almost certain, in this environment,decesion makers can’t do a better job of information management system of data in the global information on the analysis, research; Together with the data warehouse granularity size model is not easy to determine the size of data warehouse on-line analytical processing better, and puts forward the data warehouse fuzzy granularity size model. The paper’s main work and the main innovation includes the following content:1.Suitable for college students’identity management system proposed the granularity size model of fuzzy data warehouse. On the analysis of the university students’identity management system based on the characteristics of the information data, combined with the data warehouse particle size and fuzzy theory knowledge, determine the university students’ identity management data warehouse data information the theme and subject field, and around the theme building data warehouse fuzzy particle size model.2.Analysis and design the college students’ identity management system data warehouse fuzzy particle size model. Take the university students’ identity management system for background, through to the college students’ identity management system data warehouse fuzzy particle size model structure analysis and research on the detailed information of different data comprehensive degree and different particle size, the structure of the fuzzy model of particle size of design method, according to the method and construct a scientific and reasonable data warehouse fuzzy particle size model.3.Researches and gives the college students’ identity management system method. Based on the.net development environment, combined with the SQL Server2005database, using C#language designed based on C/S mode of university students’ identity management system, realize the college management information system of grain size of data analysis, the blur of purpose, and try to mark the intuitive analysis results show the form.