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Geospatial Web Services (GWS) Focus Group

The purpose of the Geospatial Web Services (GWS) Focus Group (FG) is to serve as a community-based technical advisory group to the Geospatial Intelligence Standards Working Group (GWG) forum dealing with matters related to information transfer and architecture of GEOINT services. Information transfer is the movement of information from one system to another.
The "data services" that provide for posting, discovery, access, processing, and analysis of GEOINT data stores and information stores in a distributed, real-time environment are important. Additional services and exchange formats of geospatial data are required for positioning, cataloguing, representation, portrayal, change detection, etc. Careful attention will be given to the underlying architectures in order to assure upward compatibility, plug-and-play services and components, and conformance with the market mainstream.
Emerging data interchange and API architecture components and technologies are of special interest. The standards forwarded by this FG are of interest to developers of services, APIs, and service architecture components within a distributed, collaborative, geospatial environment, and by advanced designers of service algorithms, service chains, and service-to-service interfaces.
The GEOINT service architecture standards are technologies that enable API’s and machine to machine communication as interoperable service components. Agreements in standards, profiles of standards, guidance documents, and best practices made here enable automation, interoperability, and for the creation of data exchange.
The mission of the GWS-FG is to serve as the GEOINT community forum to identify requirements for Geospatial web services, identify and resolved standardization and interoperability issues relating to implementation of those services, and as a conduit for information and coordination relating to GEOINT services activities within the community.
  • The GWS-FG will typically schedule three regular meetings usually preceding the scheduled GWG general meetings, or to support the DISR change proposal development schedule. The chair, co-chair or core members may request additional meetings, if they are required to address a particular issue that cannot be considered during the regularly scheduled meetings, due to urgency complexity, or other extraordinary factors.
  • The GWS-FG co-chairs with provide minutes and action items as captured from focus group meetings as a means of identifying measurable outcomes of the meeting.
  • The GWS-FG chairperson(s) will report on the progress of the GWS-FG at each GWG general session.
  • Detailed procedures for the operation of GWG Focus Groups are documented in GWG standard operating procedures (SOP)
  • The GWS-FG will review the Terms of Reference annually, and recommend changes to the GWG.
    • GWS-FG information and documentation will be posted on this website, the GWG member portal. Additionally, meeting announcements and agendas will be emailed to members that have self-identified as GWS-FG participants.
Web services are self-contained, self-describing, modular applications that can be published, located, and invoked across the web. Web services perform functions that can be anything from simple requests to complicated business processes. Once a Web service is deployed, other applications (and other Web services) can discover and invoke the deployed service. OGC, Web services allow different applications from different sources to communicate with each other without time-consuming custom coding. Services (or components) are loosely arranged in four tiers, from Clients to Application Services to Processing Services to Information Management Services, but un-needed tiers can be bypassed. [OGC Web Service Architecture Description]
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