Overview

The Semantic Mediation services will be used to discover services. Given a category (e.g. a sensor type) it will retrieve all the services associated with that category. The semantic mediator is in charge of walking a hierarchy of categories, finding same-as or narrower-than categories and the associated services. A figure is depicted bellow with more detailed information.

Proposed Categories

Variables

we will categorize variables based on the IOOS Core variables: http://ioos.noaa.gov/program/products_next.html:

• Seawater Temperature
• Salinity
• Sea level
• Currents
• Ocean color

Features of Interest

For identifying features of interest we could use geonames. For example for Monterey Bay: http://www.geonames.org/5374363 or in RDF : http://sws.geonames.org/5374363/about.rdf

Data Provider categories

Do we need to think about this? For example making disctintions about the type of data provider Regional Association, Research Institute, etc..

Journal

• [20070727] - Manil - Updated registry request to get Sensor types
• [20070802] - Luis - Tested various SPARQL/SOAP [Virtuoso, Joseki] - WSDL could not open with OXYGEN WSDL viewer. It is based on WSDL 2.0 and a lot of new features that have not been implemented in WSDL tools (e.g. Eclipse plugins and Oxygen). A new SAOP service will be created, and it will at least rely on SPARQL
• [20070830] - Luis - A WSDL-SOAP service to query the ontologies was made available
• [20070920] - Manil - changed registry interface at http://scoredev.itsc.uah.edu/MMI/ to search category in common ontology. 
• [20071030] - Eric and Luis what a meeting about portal categories
• [20071101] - Luis This page was update with the categories and tasks related to the categorization were added to TRAC