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Data access and processing
Adoption of standards ISO/OGC by the three initiatives seems to promote interoperability but differences in implementations preclude full interoperability. Harmonisation and interoperability of “Geographic model/information management services” for geographic data access and processing (ISO 19119) can be analysed within service categories:
• Feature access service. Service that provides a client access to and management of a feature store. An access service may include a query that filters the data returned to the client. ISO 19125-1 is relevant to feature access.
• Map access service. Service that provides a client access to a geographic graphics, i.e., pictures of geographic data. ISO 19128 is relevant to map access.
• Coverage access service. Service that provides a client access to and management of a coverage store. An access service may include a query that filters the data returned to the client. ISO 19123 and ISO 19111 are relevant to coverage access.
• Coverage Access Service – sensor. Service that provides access to a coverage where the source of the coverage data is a real-time sensor, i.e., not a persistent store.
• Product access service. Service that provides access to and management of a geographic product store. A product can be a predefined feature collection and metadata with known boundaries and content, corresponding to a paper map or report. A product can alternately be a previously defined set of coverages with associated metadata.
• Processing Service. Service that provides management of remote processing capabilities of geographic data and/or products. Processing could be a transformation of existing data until a production chain that deliver a product from raw data. OGC Web Processing Service Standard (2.0 currently in draft version) is relevant to processing service access.
For example, ISO 19128 International Standard identically defined in OGC 06-042 Implementation Specification document rules Web Map Services. In the three initiatives the service belongs to the Network Services part of the overall architecture and named, respectively, View Services, Visualization Services and Map Services in INSPIRE, GEOSS and GMES initiatives.
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Web Map Services Comparative Analysis |
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Feature |
GEOSS |
INSPIRE |
GMES |
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Binding protocol |
KVP/HTTP In OGC 06-121r3 (OWS) |
SOAP1.1/HTTP In INSPIRE NETWORK SERVICES SOAP Framework |
KVP/HTTP In OGC 06-121r3 (OWS) |
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Multilingualism |
Unsupported |
Required |
Unsupported |
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Nature of the linked Metadata |
ISO 19115 or FGDC-STD-001-1998 |
ISO 19115 resource (encoded using ISO/TS 19139) |
ISO 19115 or FGDC-STD-001-1998 |
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Right Management |
Free text values for access constraints and fees, “none” as fixed value for no constraints/fees |
Guidance might recommend non-standard usage of access Constraint and fees fields of capabilities in ISO 19128. |
Free text values for access constraints and fees, “none” as fixed value for no constraints/fees |
Table 24 - WMS Comparative Analysis
REC-WMS-001 OWS SOAP Binding
“It is recommended to the Open Geospatial Consortium (OGC), ISO/TC211and CEN TC287 to support SOAP/HTTP-POST binding, according to INSPIRE Technical Guidance and related technical documents in addition to KVP/HTTP-GET binding.”
REC-WMS-002 WMS Multilingualism
“It is recommended to the Open Geospatial Consortium OWS Common 1.2 Standards Working Group to evaluate the opportunity to support a language parameter to set the natural language used in the content of the request and response.”
REC-WMS-003 WMS linked-metadata
“It is recommended to INSPIRE Network Services Drafting Team to support metadataURL that would point on to "ISO 19115:2003" or "FGDC:1998" metadata type.”
sif, inspire, gigas, geoss, geo, interoperability, standards
Last updated 940 days ago by Stefano Nativi
