The Real Estate Research And Information System Based On Gis With Open Frame

Recently, along with the strong development of internet and computer technology, open source software project and open technology standard also gained great progress. Under traditional study mode in enterprise, the process is very complicated and the cost is very huge, but the performance is very low. Then the open source software under open frame is getting better and mature. The cost of study is becoming low step by step. And the management is going to consummate.As a branch of information technology, GIS is also affected a lot. There are many open criterion, open software of GIS and related resources coming forth.Development in GIS under open frame means that the GIS system is developed in the integrated of GIS standard, open GIS database, open GIS interspace component and open GIS software platform. Development in GIS under open frame provides us with all kinds of fundamental of diversified administrative leveds. That is very flexible than normal commerce GIS system development. Development in GIS under open frame is devided into four levels: standard level, database level, interspace level and platform level. In the ground development, we can use open GIS standard. In the embedded development, we can use open GIS interspace component. In the application development, we can use open GIS platform. In a word, Development in GIS under open frame's four levels can provides all kinds of elements and framework at GIS system development, and simultaneity these four levels become a integrated system from understratum to application.In this paper, there is one bran-new study mode bringing forward. It based on several fundamental criterion as open standard, Sharpmap and PostgreSQL as open software, NetTopologySuite as open resources. Get the three point together, let the real estate information management project be the implementing platform. The real estate research and information system is studied by upwards. This is a typical decision-making support system. The target of this system is to providing the decision-making to real estate enterprise manager by collecting the data and analyzing the data in real estate marketing.