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OGC members adopt implementation specifications for location based services and enhanced web mapping

OGC members voted to adopt the OpenGIS Location Services (OpenLS) Implementation Specification, and the OpenGIS Web Map Context Implementation Specification. Once editorial comments are incorporated, the OpenLS Implementation Specification will be publicly released. The OpenGIS Location Service Implementation Specification defines vendor and application neutral interfaces for implementing location service applications that can access directory, route determination, location determination gateway, geocoding, reverse geocoding, and portrayal services. The interfaces allow telecommunications companies, telematics service providers, traditional GIS technology companies, and location-based services (LBS) providers to efficiently implement interoperable LBS applications that seamlessly access multiple content repositories and service frameworks and that work across the world’s many different wireless networks and devices. Sponsors and contributors to these interface specifications are committed to these specifications’ harmonization with the pre-existing OpenGIS Specification baseline, including specifications for Web Map Server (WMS), Styled Layer Descriptor (SLD), Web Feature Server (WFS), and Geography Markup Language (GML). The Web Map Context Documents Specification, a companion specification to the OpenGIS Web Map Service 1.1.1 Implementation Specification, describes how to save a map view comprised of many different layers from many distributed Web map servers. A ‘context’ can be encoded and saved so that Web maps created by users can be automatically
reconstructed and augmented by the user or other users in the future. A context document is structured using eXtensible MarkUp Language (XML) and can be referenced by a simple URL. Potential uses for context documents include: creating default initial views for Web maps in significant demand by user communities, saving the state of a user’s work on a viewer client such as how geospatial layers are added or modified, and saving the state of a client session for sharing with other users. Finally, context documents could be cataloged and discovered for reuse by others. In OGC’s Interoperability Initiatives, international teams of technology providers work together to solve specific geoprocessing interoperability problems posed by the Initiative’s sponsoring organizations.