On Wednesday, April 29, 2009, from 11:00am-1:00pm US Eastern time (UTC - 4 hr), OGC® will conduct a webinar demonstrating results from the OGC Web Services, Phase 6 (OWS-6) testbed activity which has been underway since October 2008. At that time OGC and project participants kicked off development to advance OGC’s open framework of standards based on priority geospatial and location based interoperability requirements. The content of the OWS-6 initiative was organized around the following areas or threads of focus:
1) Sensor Web Enablement (SWE)
2) Geo Processing Workflow (GPW)
3) Decision Support Services (DSS)
4) Aeronautical Information Management (AIM)
5) Compliance and Interoperability Test and Evaluation (CITE)
Emphasis for the SWE thread was on:
• Geospatially-enabled Rights Management and Trusted Services in a sensor-based environment, including adding SOAP binding to sensor web services.
• Developing common web-based interfaces for Chemical-Biological-Radiological-Nuclear (CBRN) sensors, to support Sensor Observation Services (SOS), Sensor Planning Services (SPS), Sensor Alert Services (SAS), and web service catalogue registration (CSW) using SensorML.
• Building on Georeferenceable Imagery accomplishments of OWS-5, to develop sensor parameter adjustability and error propagation for georeferenceable imagery.
• Harmonizing these SWE information models: SensorML, GML, UncertML, MathML.
• Developing an events-based architecture including Web Notification Service (WNS)
The main topics in the GPW thread were as follows (with security topics being of additional relevance for SWE thread):
• Data Security and Web Services Security Environments
• Asynchronous Workflows Within and Across Security Domains
• Open Grid Forum (OGF) Enabled Web Processing Services (WPS)
• GML Application Schema Development & ShapeChange Enhancements
• Web Processing Service (WPS) Profiles
• Data Accessibility for Data Content Schema (DCS)-enabled WFS
The DSS thread encompassed these capabilities and task areas:
• ISO 19117 and OGC SLD Portrayal
• 3D Portrayal of GML with Fly-through
• Outdoor and indoor 3D route services
• WMS performance (tiling)
• Integrated Clients for multiple OWS services
The upcoming webinar will demonstrate achievements for OWS-6 in terms of web services architecture, software development, and engineering reports written. For SWE, GPW and DSS threads, these achievements will be described around the organizing principle of response by multiple stakeholder organizations to a disaster scenario. The scenario for this demonstration starts with a hostage crisis in a government building near a major urban airport, which escalates when a major fire breaks out. Emergency responders include police and fire crews, and their progress in handling the crisis can be seen with the decision-support tools provided. Cross-cutting issues include a generic events architecture, and a segmented security architecture.
The Aviation thread focused on providing up-to-date aeronautical and weather information to pilots and aircraft while at the airport gate or en-route to its destination. To support these goals, the scope of the AIM thread had the following areas of work:
• Use and enhancement of Web Feature Service (WFS) and Filter Encoding (FE) specifications in support of AIXM features and 4-dimensional flight trajectory queries.
• Architecture of standards-based events mechanism to alert/notify users of changes to user-selected aeronautical information.
• Prototype of Aviation clients for retrieval, integration and visualization of AIXM content, weather, and other aviation-related data, emphasizing time and spatial filtering in order to present just the right information into any given user context anytime, anywhere.
The CITE thread is different in purpose from the others; it is intended to develop robust test and certification tools for OGC standards. In this cycle of development, the CITE thread involved developing and refining abstract and executable test suites for software products seeking OGC certification in the area of WMS 1.3 (including all mandatory and optional elements of the standard), and the WMS 1.3 DGIWG Profile.
The webinar will last 2 hours, with the last 30-45 minutes planned for questions from viewers. This will be conducted using the WebEx Event Center, requiring only a current Adobe Flash plug-in to enable viewing. To register, go to http://portal.opengeospatial.org/public_ogc/090429_ows6_webinar.php .
OGC’s Interoperability Program is a global, hands-on and collaborative prototyping program designed to rapidly develop, test and deliver proven candidate specifications into OGC’s Specification Program, where they are formalized for public release. In OGC’s Interoperability Initiatives, an international team of technology providers’ work together to solve specific geo-processing interoperability problems posed by the initiative’s sponsoring organizations. OGC Interoperability Initiatives include test beds, pilot projects, interoperability experiments, and interoperability support services – all designed to encourage rapid development, testing, validation and adoption of open, consensus based standards specifications.