Research And Realization For The Expressing Layer Of Statistic Software Package Based On Three-tier Architecture

Statistic software package plays an active role in the society development. China is comparatively late in statistic software development. Most of the mainstream statistic software packages are foreign product at present. It don't support Chinese operating interface and have to write SQL script when obtaining and analyzing data; It ask too much of operator's professional qualities for nonprofessional users; It don't have the function of obtaining isomerous data from cross platform etc. All these demanding and restriction, specially considered the costly charges, make them not be used widely in China till now.At contemporary society, statistic theory and method research is very mature, and is applied in many subjects and realms, while the research and developing of statistic software package is rarely be reported. Therefore, it is necessary to study ,design and realize domestic statistic software package.This thesis is attending to research designing and realizing method of statistic software package based on three-tier architecture, especially focus on the realization techniques of the expressing layer. The main contents of this paper include:1) Aiming at the total design target of statistic software package based on three-tier architecture, by researching the design theory and method of human-computer operating interface, design and realize the navigating-style human-computer interactive interface which match the operating habit of local customer and match the Chinese language expressing requirement of the meta data structure information in database.2) Adopting the XML format document technique, research and realize the data interface protocol which suits the statistic software package based on three-tier layer, resolve and produce XML format interface protocol and apply it.3) Research and realize combinative application of the socket communication principle and the human-computer interactive interface theory.4) Research and realize the innovative technology which obtain the optimizing data path of statistic condition statement in expressing layer based on symbolic logic reasoning. This technology helps to obtain optimizing and meaningful statistic analyzing data object under the circumstance of multiple data source extraction and/or the circumstance of abundant data.5) Participated to the design of statistic information collecting and storing data structure, also research and realize the chart and report produce technology which combine the advantage of XML data source.In the above-mentioned research content, the author puts forward the technology of obtaining the optimizing data path of statistic condition statement based on symbolic logic reasoning, and have published related research paper, which has academic reference value.This paper has researched, realized and summarized the realization techniques of statistic software based on three-tier architecture. It has consideration meaning in trade statistic software realm. The research result of this paper lay the related theory and technical foundation of data analytical system, and the application of this research result can improve product management and the level of assistant to make decisions.