Web services, NSDI and e-government
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Web services have emerged as the next generation of Web-based technology for interoperability. Web services are modular, self-describing, self-contained applications that are accessible over the Internet. Various communities that either produce or use Information and Communication Technologies are working on web services nowadays. There are already a number of software companies providing tools to develop and deploy Web Services. In the Web Services view, every different system or component offers some services for some others. Any system does its job by just calling suitable services over Internet. From this respect, one can derive the analogy between the philosophies behind Web Services and Object-Orientation. In general, Web Services seems to have a great potential for wherever there is a need for cooperation or “interoperability”. In Today’s World, the interoperability, the ability of different systems cooperate with one another, is the only way to assure rapid, cost-effective and quality solutions or services. This need, backed up and in a sense provoked by Internet, and the Web have opened up the road to Web Services. National Spatial Data Infrastructures (NSDI) has emerged as the way of enabling interoperability throughout a country. Similarily, Electronic (e-) government has emerged as a solution to the problems of traditional governments, such as declining revenues, high costs, poor quality services, and corruption. Both NSDI and e-government needs an interoperability infrastructure. Web services seem to satisfy this need. This paper summarizes our ongoing work on designing and developing web services for electronic (e-) local governments. Web Services would enable lowering costs, improving service quality, and increase revenues in local governments. This is an urgent need especially for local governments in Turkey as well as in many other countries. We have implemented a number of web services for the Trabzon municipality in Turkey. The implementation has been done via Cape Clear TM Web Services development and deployment software.