May 18, 2009
Open Geospatial Consortium Update
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Susan Smith - Managing Editor

by Susan Smith - Managing Editor
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Industry News

Open Geospatial Consortium Update

(compiled by the Editor from OGC materials)

The Open Geospatial Consortium, Inc. (OGC) has been very busy lately with various events and methods of disseminating information.


The OGC 3D Fusion Summit is to be held June 23, 2009 at the Stata Center at MIT in Cambridge, Massachusetts. The OGC's 3-D Information Management Domain Working Group (3DIM WG) has emerged as an important forum activity for the discussion and promotion of the convergence of 3-D visualization, CAD-GIS integration, and Building Information Modeling (BIM). Those stakeholder groups involved with capital facility projects throughout their lifecycle benefit from this forum. In addition, the same standards support scene visualization and decision support systems in defense, intelligence and emergency management.

The Open Geospatial Consortium, Inc. (OGC) invites participation in an OGC Sensor Web Enablement (SWE) Summit to be held June 24, 2009 at the Stata Center at MIT in Cambridge, Massachusetts.

The OGC's
Sensor Web Enablement (SWE) standards make it possible for developers to make all types of sensors, transducers and sensor data repositories discoverable, accessible and useable via the Web. Areas where these standards are being used widely include ocean observation, homeland security, and other domains where Web access to sensors is important.

Participation is invited to an OGC Geospatial Rights Management (GeoRM) Summit to be held June 22, 2009 at the Stata Center at MIT in Cambridge, Massachusetts.

The broadening use of geospatial data and services heightens issues surrounding security, public access, intellectual property, and emergency use of geospatial information. Because geospatial data products are often comprised of data from multiple sources which may have different rights and restrictions associated with them, the issues are complex. Most professionals agree that the industry bottleneck are now business and policy issues, not technical issues, as they once were.

Completion of AECOO-1 (Architecture, Engineering, Construction, Owner and Operator) Phase 1 Testbed

The OGC completed the AECOO-1 (Architecture, Engineering, Construction, Owner and Operator) Phase 1 Testbed, a 9-month effort to increase interoperability among software used by architects, construction companies, cost estimators and building energy analysts. A free webinar demonstrating results from the Testbed will be conducted on Thursday, May 28, 2009, from 12:00 - 2:00 p.m. EDT, by the buildingSMART alliance (bSa), the Open Geospatial Consortium, Inc. (OGC) and sponsors and participants of the AECOO-1 Testbed.

The AECOO-1 Testbed used Industry Foundation Class (IFC) standards to analyze tradeoffs between construction cost and energy efficiency to exchange building information. This work prefaces possible future development of open standards for Web service interfaces. Results will be submitted for consideration by bSa's National Building Information Modeling Standard (NBIMS) Project Committee.

Discussion Papers

The OGC released two Discussion Papers: Uncertainty Markup Language (UncertML)

As per the press release: “UncertML is a conceptual model and XML encoding designed for encapsulating probabilistic uncertainties and may be used to quantify and exchange complex uncertainties in data. Most data contains uncertainty arising from sources such as measurement error, observation operator error, processing/modeling errors, or corruption. Processing uncertain data propagates and often increases uncertainty. Thus there is a need for a standard way of characterizing uncertainty that is readily interpreted by software systems. UncertML is based on a number of ISO and OGC standards, such as ISO 19138 Data Quality Measures, and addresses the ISO/IEC guide to the expression of
uncertainty in measurement (GUM). UncertML utilizes the OGC Geography Markup Language (GML) Standard and the OGC Sensor Web Enablement Common (SWE) Standard.

The OGC Web Coverage Service Standard (WCS) Extension for CF-netCDF Encoding provides a way for users of
CF-NetCDF data to use the OpenGIS Web Coverage Service Interface Standard (WCS). WCS defines a protocol-independent language for the extraction, processing, and analysis of multi-dimensional gridded coverages representing sensor, image, or statistical data. The netCDF (network Common Data Form) interface, library, and format support the creation, access, and sharing of array-oriented scientific data. The CF (climate and forecast) metadata conventions provide definitive descriptions of what the netCDF data in each variable represent, including the data’s spatial and temporal properties.”

Formation of Working Groups

The Open Geospatial Consortium, Inc. (OGC) announced the formation of

The OGC’s standards make it possible to achieve greater interoperability within and between the hydrology and meteorology communities. The focus now is to leverage these DWGs to further advance interoperability solutions to benefit these disciplines, which have increasing importance globally in science, policy and decision support.

The Hydrology Domain Working Group brings together experts from this community of interest to develop and promote standards, interoperability and best practices for improving the way in which water information is described and shared. This working group is to be hosted by the OGC and co-chaired by a representative from the

The purpose of the OGC Meteorology DWG is to provide an open forum for work on meteorological data interoperability, and a route to publication through OGC's standards process (Discussion paper / Best Practice / Standard, and, if appropriate, to ISO status). The goal is to develop standards that meet the specific needs of the
World Meteorological Organization and benefit the world weather, water and climate data users and producers.

The OGC’s current standards are enabling a new degree of interoperability within and between the hydrology and meteorology communities. The focus now is to leverage these working groups to further advance interoperability solutions to benefit these disciplines, which have increasing importance in the world scientifically and politically.

An OGC Domain Working Group (DWG) provides a forum for discussion of key interoperability requirements and issues, discussion and review of specifications, and presentations on key technology areas relevant to solving its members’ geospatial interoperability issues.

OGC Network

OGC Network is a window onto the dynamic, constantly changing geospatial web as described by the
OpenGIS® Reference Model (ORM). The network supports multiple communities of interest for research in geospatial interoperability, and provides persistent demonstration capability. The latest information on OGC-compatible software, services, and information models (e.g. GML profiles, SLD examples, etc.) is available here. From this site you can quickly locate OGC-compatible geospatial web services, the latest XML schema documents, discussion forums, conformance testing resources, and GML profile working areas. Instructions on signing up for authoring privileges are

“Learn” Section of OGC Network

A section of the Network is devoted to learning, providing resources for the general public on discussion forums and mailing lists. This
"Learn" section of OGC Network provides a starting point for visitors who may want to ultimately become OGC members.

A map on the site shows three layers using the OpenLayers application. All OGC Corporate members and the location of users that are used for quotations on the OGC Website are displayed on NASA's global mosaic. The OGC members, Quotations, and the NASA imagery are retrieved using the OpenGIS Web Mapping Service (WMS) protocol. Click on a red dot to see more info about the OGC member organization, or the yellow box to see who has been quoted on the OGC Website.

The OGC members and quotations data set may be accessed via the WMS or Web Feature Service protocols using these endpoints:


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