_2011-03-14

At the most recent OGC TC meeting held in Bonn, 52°North partners shared their expertise in the Sensor Web Enablement, Geoprocessing, Workflow and other related Working Groups, thus contributing to the further development of interoperable standards for SDIs.

Bastian Schäffer, 52°North Geoprocessing Community leader and chair of the WPS Standards Working Group, presented the status of the current WPS 2.0 draft specification.

In the Workflow Domain Working Group, Benjamin Pross introduced the current status of the EC funded project UncertWeb, which aims to uncertainty-enable the Model Web, and how the chaining of geoprocessing workflows will be treated within the project. He also presented the 52°North web-based Geoprocessing Workflow Modeller, a lightweight browser application that allows users to chain geoprocessing workflows consisting of different OGC services, such as WPS, WFS and WMS. The Workflow Modeller was developed during a research project with the Sejong University in Seoul and is further used and developed in the context of UncertWeb.

Members of the 52°North Sensor Web Community were active in the Sensor Web Enablement Domain Working Group. Christoph Stasch presented an approach for a common O&M profile restricting results, features of interests and adding uncertainty encoded as UncertML. Development of the profile is also part of the UncertWeb project. A JAVA API which implements the profile and can be easily used in server and client implementations for encoding and decoding data encoded in the O&M profile is available as Open Source at 52°North (https://svn.52north.org/svn/geostatistics/main/uncertweb/profiles-api).

Daniel Nüst, member of the Geostatistics and Sensor Web Communities,  presented sos4R, an OGC Sensor Observation Service client for the R environment. It enables powerful spatio-temporal statistical analyses of SOS data with a constantly growing platform. Since the software has reached a stable stage and we are looking for users, the presentation at the SWE Domain Working Group was an important step.

Arne Bröring and Christoph Stasch chaired the SOS 2.0 Standard Working Group. The main topics included the roadmap covering the time up to the run for adoption vote and a presentation of the changes addressing the RFC response. In addition, a SOS 2.0 specification tutorial was introduced.

In the Hydrology Domain Working Group, Simon Jirka, 52°North Sensor Web Community leader, gave a short presentation about the changes that accompany the SOS 2.0 specification.