The Research And Application Of Enterprise Instant Messaging System Based Of GIS

Comparing with the personal instant messaging,enterprise instant messaging is undoubtedly a new estate.but this new estate is still growing.It is said in the report << Enterprise Instant Messaging 2005-2008>> which was announced by Radicati conglomerate recently that it will grow very fastly in the following several years. Ditigal times create an economy of globalization. Enterprise has to find a way to span the limit of time and space in order to carry out instant messaging.Instant message is a new communication medium.As a simple and direct tool of real-time communication,it is gradually accepted by corporations. When it comes to correspondence,telephone has an advantage of direct intercourse and e-mail has the merit of randomness.But besides these two advantages, instant messaging provides the third advantage-presence information.Presence information could give you a hint to know whether someone is on-line or whether you have received a new message etc.The advantage of instant messaging makes it unnecessary for workers to waste time on calling someone.So it greatly simplify the process of message intercourse and data exchange among workers and departments and rises the productivity of the corporation. Obviously,instant messaging is attractive.It updates the timeliness of connection among people.Therefore,instant messaging begins to set foot in the fields of customer services,e-retail,police investigations,emergency aids and even military operations. Analysts call instant messaging "real-time" e-mail.It is safely to say that instant messaging is gradually transiting from a simple communication tool to exerting its whole commercial values. With the development of technology and requirement,instant messaging applies from popularity to specialization.There are several terminals in GIS system.It is neccessary to exchange different datas in different time.In an ordinary GIS system,it is impossible to achieve complete real-time.Having consulted currently popular instant messaging system,this system have taken a lot of research in this aspect.It integrates with GIS system and finishes a remarkable feather in it. This artical accounts for the actual state,developing trend and current problems of instant messaging system,brings up the technological route of instant messaging system based on GIS; discusses the basic theory of TCP/IP protocol, software development based on component,XML application and so on. On the base of theoretical researches, It brings up the conception model of instant messaging system which based on GIS.In this model,there are some descriptions about system structure model which is based on TCP/IP protocol and used to carry out network correspondence and module function;Requirement and the structure of database of system is analyzed detailedly in system design; brings up a realization scheme of the system,and ,by using an example,demenstrates the usability of supporting GIS function in instant messaging system.For example:reporting position,applying for the data of map.It basically solves the blind aeras of application of instant messaging in GIS system; Through the investigations and researches of estate,the developing skeleton of instant messaging system has been clarified and the burning problems in the researches of enterprise instant messaging system have been figured out.