The Functional Reuse Research And Realization Of Irrelevant GIS Platform Application Software

GIS is a integration application system developed in recent 20 years, It can unify each kind of information of same geographical position and the related view and merge the geography, the geometry, the computer science and each kind using the object, Internet, the multimedia technology and the hypothesized realization technology and so on into one organic whole, and use the computer graph and the data to Gather, memory, edit, the demonstrate, transform, analyze and output geography graph and its the attribute data.GIS is widespread application in all the various trades and occupations, including all the various trades and occupations and so on finance, water conservation, transportation at present. But in each kind of application system all can have the same some basic functions. Moreover at present developed the platform to be too many, causes the application system two developments to spend the more manpower physical resource in the redundant work.. Along with the people to the value which duplicate uses, more and more people pay attention to question about the reuse of GIS application software.This article in view of this question, first introduced the GIS development patterns and several kind of different components technologies, compared several kind of different GIS platform, analyzed its respective connection characteristic, suggested developing software by using the methods of component based software development, forms using the component technology the software function components which may reused, carry on the function reuse based on the different GIS platform application software , thus realizes the platform irrelevant, enhances the software reusability. Finally the preliminary realization needs to carry on reusing in an application example.This article does the work has the following several points:1. Has analyzed the GIS development several kind of developments pattern , component technology several methods as well as data interface among GIS2. Intrused the GIS function reuse technology at present, analyzed platform irrelevant, proposes to development software based on the system structure, faced to the component.3. Analyzed common several kind of GIS to develop the platform the characteristic, by realized the platform mutually operation. Then the paper brings forward the method that use Web service encapsulate component interface and relizes component reuse through SOAP.4. Used proposed the software method of exploitation has completed based on the GIS application software development, uses the component technology, carryed the platform irrelevant function reuse initially.