Research Of The Design And Implement Of City Commerce Outlet GIS

Retailing is a vital part of urban life to everyone who lives in a modern society. Because of its geographic dimension, the spatial organization of commercial establishments since the 1930s has been theorized according to Christaller's central place hierarchy. Recently, Michael Porter presents a 'value chain model' based on which the national competitive advantage is built.There is growing trend to use geographic information systems (GIS) in developed countries. As a data base system for manipulating digital spatial and thematic data, GIS is increasingly being used to aid in resource management, computer-assisted mapping and decision-making system.Retail establishment management is an important part of urban commerce. With the development of national economy and fast increasing of the number of retail establishments, new commercial types emerge, their spatial organization patterns change, and conventional mode of retail establishment management is being challenged. It is impossible to manage retail establishments simply depending on their text document and tabulated data. For this reason, new management mode is in urgent need. GIS is an effective tool with powerful functionality for data management, analysis and visualization.This paper is to develop a specialized GIS designed specifically for retail-establishment management. The system is based on the software engineering principles, including requirement analysis, function framework, database, user interface and integrative architecture. First of all, the function framework is set up based on the requirements analysis. In the next, the database is designed to fit for the function and the characteristics of the data. Then, the user interface is taken into account, since it is very important for the system. Finally, an integrative architecture is proposed for guiding the development of the system. In so doing, two issues are discussed in detail the paper for the design of database and user interface.In order to resolve the problems uncovered in the design and development, three keytechniques are stated, they are spatial data model, relative distance based liner interpolationarithmetic and readable user interface. The data model is presented for building up the common GIS data model. The arithmetic assists geo-coding China's address. China's address is mostlygeo-coded by North American geo-coding rules that have some limitations in China. Readableuser interface includes two aspects, and the first is the readable dialog while the other is business map. Readable dialog provides users with a well-organized, well-performed interface. Furthermore, the readable dialog can monitor the user's motive by using natural language instruction or table template. Business map is a conceptual pattern of organizing map data and operation in the system. Map data storing, information, visualization and functions are integrated for easier understanding and using.With the design and research on key techniques, the core functions of the system are studied, and the functions are given by formal expression and UML diagrams. Programmers can easily translate the UML diagrams to codes. Besides, optimizing the search function is discussed in the paper. At last an intact commercial outlet GIS is accomplished, the core functions are displayed at the same time and the purposes of functions are introduced.The paper concludes with a summarization of design and research results. With the development of information technology (IT) and the cognition for the retail establishments, the trend of retail establishment GIS is going toward 3D GIS, WebGIS and Mobile GIS, which leads to a new direction of research agenda in the future.