Three Ddimensional Spatial Web Services

By rapid development of Web envirement, using of Web has changed. Presenting the data and process using Web services technology is one of the most significant changes. Web services are Independet of operating system, Web browser and programming languages; also these services can present data in a standard format such as XML. One of the most important types of information is spatial data. Therefore, Web services are used for search, access, integrate, process and visualize spatial data from different data sources. Spatial Web services by supporting 3D spatial data are known as new generation of Web services. This research investigates capabilities of current 3D Spatial Web Services: Web Feature Service (WFS), Web View Service (WVS), Web Terrain Service (WTS) and Web 3D Service (W3DS). Next, these Web services are compared based on three criterias: overall architecture, presentation capabilities and level of user interaction. Finally, based on these comparisons and review, we propose several applicatons for each 3D spatial Web services.