OWS-9 CCI

OWS-9
(OGC Web Services Testbed, Phase 9)
Cross-Community Interoperability (CCI)
Requirements Summary

The Cross-Community Interoperability (CCI) thread seeks to build on the CCI work accomplished in OWS–8 by increasing interoperability within communities sharing geospatial data. This thread will advance semantic mediation approaches for data discovery, access and use of heterogeneous data models and heterogeneous metadata models. The work to be performed in this thread includes the following:

  • Semantic mediation
    • Advancement of semantic mediation approaches to query and discover data, which have been described using different metadata models, including non-traditional OGC metadata models.
    • Advancement of semantic mediation approaches to query and discover data, which have been described using different data models, including non-traditional OGC data models.
  • Query Results Delivery
    • Advancement of using Security to filter and route query results.
    • Advancement of using OWS-Context for results delivery.
  • Data Provenance and Quality:
    • Advancement of using a web based data processing facility for managing and visualizing provenance and quality of data.
    • Advancement of managing data provenance in OGC Web Services.
  • Single Point of Entry Global Gazetteer (SPEGG)
    • Advancement of semantic mediation approaches to provide a Single Point of Entry Global Gazetteer.

Deliverables

  1. OWS-9 CCI Semantic Mediation Engineering Report
  1. Metadata encodings for semantic mediation
  1. Mediation Information Models, Encodings and Mappings for data
  1. Change Requests – Semantic Mediation
  1. Semantic Mediator Component
  1. Semantic Mediation Service – Knowledge Base SPARQL
  1. Semantic Mediation Service – Catalog for VGI
  1. Semantic Mediation Service – WFS for Semantic Mediation
  1. OWS-9 CCI OWS Context evaluation Engineering Report
  1. OWS Context document for CCI
  1. OWS Context encoding examples for CCI
  1. OWS-9 CCI Conflation with Provenance Engineering Report
  1. Conflation rules encoding
  1. Conflation Web Processing Service
  1. CCI Integrated Client
  1. OWS-9 CCI Single Point of Entry Global Gazetteer Engineering Report
  1. Web Feature Service 2.0 for USGS TNM
  1. Web Feature Service 2.0 for NGA TDS
  1. WFS-G for GNIS
  1. WFS-G for GNS
  1. WFS-G semantic mediator
  1. Catalog for Provenance
  1. Client for Single Point of Entry Global Gazetteer

OWS-9 CCI Semantic Mediation Engineering Report

This Engineering Report will include description of the work performed, gaps and proposed future work related to the work performed on this thread. The report shall be based on the OWS–8 CCI Semantic Mediation ER. This ER shall include a description of the architecture, service implementations, workflows and any recommendations. This ER shall contain the following sections among others: Architecture and Design, Semantic Metadata Mediation, Semantic Data Mediation, SPARQL service.
This deliverable is related to the following requirements:

  • Advance Data and Service Discovery
  • Advance Security of Query Result Delivery
  • Advance OWS Context for Results Delivery
  • Advance Evaluation of Query Results

Metadata encodings for semantic mediation

Machine-readable format (e.g. in RDF) of encodings used for the metadata semantic mediation. Encodings include: the mediation information model, any representation of metadata models required for mediation, the semantic mappings, and example encodings for instances of each metadata model.
This deliverable is related to the following requirement:

  • Map NSG, NMF, FGDC, ISO and Open Street Map, metadata standards

Mediation Information Models, Encodings and Mappings for data

Provide mediation information models, encodings and mappings for data,
This deliverable is related to the following requirements:

  • Include TDS, TNM, Open Street Map and VGI data.

Change Requests – Semantic Mediation 

Change Requests to OGC specifications as required. Modifications or enhancements to the OGC suite of standards as needed to support the concept and implementation of Semantic Mediation capabilities.
Semantic Mediation Service – Knowledge Base SPARQL

Semantic Mediator Component

Enhanced Semantic Mediation capabilities to support service and data discovery through service and data content metadata to include open source search, OGC and non-OGC based services, multiple service interfaces, crowd- sourced volunteered geographic information (VGI). 
This deliverable is related to the following requirements:

  • Include TDS, TNM, Open Street Map and VGI data.
  • Advance Single Point of Entry Global Gazetteer / Implement Semantic Mediator
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Semantic Mediation Service - Knowledge Base SPARQL

Component of the suite of prototype Semantic Mediation services to support enhanced capability requirements.   The knowledge base SPARQL Server shall support managing and retrieving of mappings for data (and data models) and metadata.
This deliverable is related to the following requirements:

    • Investigate standard registration of SPARQL servers
    • Propose standard development for SPARQL servers
    • Demonstrate semantic mediation of aviation data
    • Allow metadata semantic equivalency
    • Map NSG, NMF, FGDC, ISO,and Open Street Map metadata standards
    • Include TDS, TNM, Open Street Map and VGI data
    • Provide data semantic equivalency via a semantic mediation service
    • Map GNIS and GNS feature types
    • Map a third mediating feature type
    • Demonstrate semantic mediation of aviation data

Semantic Mediation Service - Catalog for VGI

Component of the suite of prototype Semantic Mediation services to support enhanced capability requirements.   The catalogue exposes social web sources through OpenSearch Geo.
This deliverable is related to the following requirements:

    • Map NSG, NMF, FGDC, ISO and Open Street Map metadata standards
    • Include TDS, TNM, Open Street Map and VGI data
    • Allow general search capabilities
    • Include Open Search for crowd- sourced data
    • Investigate the use of OWS Context as results delivery mechanism
    • Test and evaluate different encodings for OWS Context

Semantic Mediation Service – WFS/WMS for Semantic Mediation

Component of the suite of prototype Semantic Mediation services to support enhanced capability requirements.   The WFS /WMS semantic mediator mediates across WFS data models.
This deliverable is related to the following requirements:

    • Map NSG, NMF, FGDC, ISO and Open Street Map metadata standards
    • Include TDS, TNM, Open Street Map and VGI data
    • Demonstrate semantic mediation with aviation data

OWS-9 CCI OWS Context evaluation Engineering Report

Engineering Report documenting the results of an analysis of the benefits and drawbacks associated with the different encoding options for OWS Context, including Atom, JSON and HTML5.
This deliverable is related to the following requirements:

  • Advance OWS Context for Results Delivery

OWS Context document for CCI

OWS Context document for delivery of refined query results based on authorization rules.
This deliverable is related to the following requirements:

  • Advance OWS Context for Results Delivery

OWS Context encoding examples for CCI

Encoding examples for OWS Context document in Atom, JSON, and HTML5.
This deliverable is related to the following requirements:

  • Advance OWS Context for Results Delivery

OWS-9 CCI Conflation with Provenance Engineering Report

Engineering Report documenting the WPS Conflation Service and how Data Provenance is captured during the conflation processing.  Description of the conflation rules encoding to be included. The report shall contain an encoding for provenance, adapted to distributed environments, that is able to link to data or services instances and their metadata record. It also includes how to retrieve provenance information from catalogues.
This deliverable is related to the following requirements:

  • Advance web based data processing including provenance and quality
  • Advance managing of data provenance in OGC Web Services

Conflation rules encoding

Encoding schemas and examples for conflation rules applicable to vector and raster data.
This deliverable is related to the following requirement:

  • Develop conflation rules for vector and raster data.

Conflation Web Processing Service

Conflation service with WPS interface to support semi-automated client supported, interactive data registration and conflation rules development for vector and raster data. Conflation service shall make use of the semantic mediation processes and client visualization to demonstrate alignment analysis of data from two or more datasets. 
This deliverable is related to the following requirements:

  • Advance Evaluation of Query Results
  • Advance web based data processing including provenance and quality
  • Advance managing of data provenance in OGC Web Services

CCI Integrated Client

Integrated Client to the various CCI services.  Client will support: reading and displaying the content of OWS Context document; visualization or the semantic mediation process; creation of conflation rules with interface to Semantic Mediation service and Conflation Service; and maintaining data provenance of the individual parts of data merged as a result of the data processing (conflation) service. The client represents the encoding for provenance in a visual way (“tree” or network of data and services) adapted to distributed environments that that gives access to data or services instances (including processes) and their metadata records.
This deliverable is related to the following requirements:

  • Allow general search capabilities
  • Include Open Search for crowd- sourced data
  • Allow ability to add metadata
  • Demonstrate semantic mediation of aviation data
  • Test and evaluate different encodings for OWS Context
  • Allow to read and display OWS Context document
  • Enable visual representation to support uncertainty and quality in mediation process
  • Allow visual interaction for conflation and analysis
  • Maintain the data provenance of processed data in metadata of new combined dataset
  • Demonstrate semantic mediation of NGA, USGS, VGI, Commodity, etc.) as details in 5.2.1
  • Demonstrate semantic mediation of aviation data

Single Point of Entry Global Gazetteer Engineering Report

Report shall include architecture of the system, best practices for services and for clients.

Web Feature Service 2.0 for USGS TNM

Web Feature to provide access to the USGS TNM Data
This deliverable is related to the following requirement:

  • Include TDS, TNM, Open Street Map and VGI data

Web Feature Service 2.0 for NGA TDS

Web Feature to provide access to the USGS TNM Data
This deliverable is related to the following requirement:

  • Include TDS, TNM, Open Street Map and VGI data

WFS-G for GNIS

Provide a WFS-G interface for GNIS.
This deliverable is related to the following requirements:

  • Implement a WFS-G cascading service with semantic mediation capabilities
  • Make available at least three geographic names databases via web services
  • Revisit WFS standard for response completeness
  • Implement service interface to query geographic names similar to current web interfaces
  • Implement advance filter of query names
  • Handle diacritics and special characters in searches
  • Implement advance spatial constraints
  • Implement advance gazetteer query services

WFS-G for GNS

Provide a WFS-G interface for GNS.
This deliverable is related to the following requirements:

  • Implement a WFS-G cascading service with semantic mediation capabilities
  • Make available at least three geographic names databases via web services
  • Revisit WFS standard for response completeness
  • Implement service interface to query geographic names similar to current web interfaces
  • Implement advance filter of query names
  • Handle diacritics and special characters in searches
  • Implement advance spatial constraints
  • Implement advance gazetteer query services

WFS-G semantic mediator

Provide a Semantic Mediator, which is also a WFS-G, capable of querying other WFSs and interacting with the SPARQL knowledge base.
This deliverable is related to the following requirements:

  • Implement a WFS-G cascading service with semantic mediation capabilities
  • Implement service interface to query geographic names similar to current web interfaces
  • Implement advance filter of query names
  • Handle diacritics and special characters in searches
  • Implement advance spatial constraints
  • Implement advance gazetteer query services

Catalog for Provenance

Catalog to register services and help discover them. It complements the Catalog for VGI. It supports the advance managing of data provenance in OGC Web Services. 
This deliverable is related to the following requirements:

  • Allow general search capabilities
  • Allow ability to add metadata
  • Investigate standard registration of SPARQL servers
  • Investigate data quality exposure in OGC services and encodings
  • Maintain the data provenance of processed data in metadata of new combined dataset
  • Maintain link of process step and source

Client for Single Point of Entry Global Gazetteer

A client to demonstrate the Single Point of Entry of a Global Gazetteer.
This deliverable is related to the following set of requirements:

  • Advance Single Point of Entry Global Gazetteer