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Imagine a large metropolitan area in which many cities have installed different highway video monitoring systems, all connected to the World Wide Web. Imagine a transportation manager using a map display interface to select highway segments or intersections the manager wants to view using video. The monitors have been installed independently at different times by different vendors using different equipment and software, but all the vendors have implemented a set of standards that enable the user's application to discover, control and access all of the monitors in the same way, as shown in Figure 1. Many of those standards - the OGC(r)'s Sensor Web Enablement (SWE) standards - have been approved by the OGC's membership and are beginning to be deployed in solutions.