Architecture for developing reusable components for GIS systems

Software reuse generally means the use of existing software systems to build new software systems. It is an emerging area in the field of software engineering, which reduces the effort and time required to build software systems from scratch. The software system thus developed using this technology is easy to maintain and upgrade. This technology helps to enhance the quality; reliability and flexibility of software systems. The different forms of software reuse are Code reuse, Architecture reuse, Requirement reuse and Documentation reuse. Software reuse helps to minimize the risks associated with the development process and the high costs associated with developing new systems. The approach of software reuse can be applied to Geographic Information Systems (GIS) to simplify the development process and to improve the efficiency of these systems. In this paper architectures of different component based GIS system have been examined.