文章基本信息

标题：Web Services and National Spatial Data Infrastructure (nsdi)
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作者：Ç. Cömert
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B4
页码：320-325
出版社：Copernicus Publications
摘要："Web Services" have gathered a great interest from various communities including business, industry, academia, and government. Many successful implementations of Web services for business to business (B2B), government to business (G2B), and government to citizen (G2C) applications are already in place. "Web Services" is a new paradigm where every different system or provider offers some "services" for certain user groups. Any user does its job by just calling or combining proper services over Internet. If one is to derive an analogy from the philosophical point of view, it should be the one between Web Services and Object-Orientation. Although it has some weaknesses, Web Services seems to have a great potential for wherever there is a need for cooperation or "interoperability". This need had long been felt in spatial data management communities. These communities have also directed their work towards the adoption of Web Services for their clear advantages over traditional models of interoperability. On the other hand, National Spatial Data Infrastructures (NSDI) have traditionally been based on these interoperability models. In other words, as their names imply, they have been "data-centric". Whereas, it should not be difficult to predict the business models and supporting technologies which will shape the future of spatial data communities considering the related developments in such areas as B2B. From this respect, Web services have great potentials for NSDI. The purpose of this work is to examine this potential. To this end, the paper will first introduce the current status of Web services. It will then present some implementations of web services within the context of NSDI. Finally it will present a web services based infrastructure for the NSDI of Turkey
关键词：Spatial Infrastructures; Data; ; Interoperability ; ; Databases; National