| Traditionally, the use of Geographical Information Systems (GIS) has been restricted to a relatively few highly technical and experienced users within organizations. True enterprise wide implementation of GIS into the normal business process has therefore been a long time goal of many organizations. The enterprise implementation of GIS requires first and foremost the ability for the GIS Database Management Systems (DBMS) to coexist and integrate with an organization's information systems infrastructure. ARC/INFO and ARCVIEW (GIS software by Environmental Research Institute (ESRI)) have provided this functionality through database integrators. The main disadvantage of ARCVIEW and ARC/INFO are cost, flexibility, and speed. A prominent aspect of this information system is the need to provide GIS functions and products over a distributed network.; The aim of this thesis project is to develop an application where VISUAL BASIC (Rapid Application Development tool offered by Microsoft Corporation) clients will be used to insert or upload new data, retrieve data stored in ORACLE relational Database and display data using MAPOBJECTS (GIS component software offered by ESRI) in a fast and effective manner.; The application is a client/server system, VISUAL BASIC as the front-end, ORACLE Database as the back-end and MAPOBJECTS to build mapping capabilities into the application. The middle-ware used to interface the VISUAL BASIC with ORACLE Database is ORACLE Objects for OLE. |
