Difference between revisions of "Data Catalog Side Meeting"
From Earth Science Information Partners (ESIP)
(Created page with "The following points were presented and discussed (see File:AQ_SOLTA_2011-Data_Catalog_side_meeting.pdf) Catalog architectures * Centralized catalog * Distributed ca...") |
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* Broker catalog | * Broker catalog | ||
| − | GI-cat: a broker catalog to federate heterogeneous standard services | + | GI-cat, aka EuroGEOSS Discovery Broker: a broker catalog to federate heterogeneous standard services (part of the GEOSS Common Infrastructure) |
* Catalog services (CSW, OpenSearch, ...) | * Catalog services (CSW, OpenSearch, ...) | ||
* Inventory services (THREDDS, WAF, ...) | * Inventory services (THREDDS, WAF, ...) | ||
| − | * Access services (WCS, WMS, ...) | + | * Access services (WCS, WMS, ...) |
| − | |||
| − | |||
| − | |||
Broker catalog use cases | Broker catalog use cases | ||
| − | + | * Addition of new heterogeneous server nodes to the existing capabilities (the MACC WCS was added) | |
| − | * Addition of new interfaces to the available services | + | * Addition of new interfaces to the available services |
| − | + | * Using GI-cat through the GI-go geobrowser client | |
| − | + | * Using GI-cat through the GI-portal light client | |
Discovery standards | Discovery standards | ||
| Line 33: | Line 30: | ||
* The Air Quality Community Catalog (metadata and service interfaces, functionalities and role) | * The Air Quality Community Catalog (metadata and service interfaces, functionalities and role) | ||
* Test outcomes of GI-cat federating the Air Quality catalog | * Test outcomes of GI-cat federating the Air Quality catalog | ||
| − | * uFind functionalities and features | + | * uFind functionalities and features (with a demo of uFind faceted-search); the facets are encoded in metadata keywords, as key-value-pairs with the syntax <facet>:<value> |
| − | |||
| − | uFind | ||
| − | + | Other issues | |
| − | * | + | * AQ metadata for discovery: what are the facets of description for AQ data? |
* AQ data granularity level | * AQ data granularity level | ||
* How can the AQ Community Catalog and GI-cat complement each other effectively? | * How can the AQ Community Catalog and GI-cat complement each other effectively? | ||
| + | |||
| + | '''Discussion summary''' | ||
| + | |||
| + | We should collaborate for raising awareness of GCI principles among the AQ CoP, for example: about semantic discovery, where there already exist an AQ controlled vocabulary (derived from CF conventions); about integration and reuse of access facilitators/helpers (uFind, GI-axe) | ||
| + | |||
| + | Three possible practical actions with respect to EuroGEOSS: | ||
| + | * Shepherd the AQCC into EuroGEOSS | ||
| + | * Harmonize AQCC and EuroGEOSS (e.g. wrt semantics) | ||
| + | * Leverage EuroGEOSS accessors/adaptors | ||
Revision as of 00:40, August 24, 2011
The following points were presented and discussed (see File:AQ SOLTA 2011-Data Catalog side meeting.pdf)
Catalog architectures
* Centralized catalog * Distributed catalog * Broker catalog
GI-cat, aka EuroGEOSS Discovery Broker: a broker catalog to federate heterogeneous standard services (part of the GEOSS Common Infrastructure)
* Catalog services (CSW, OpenSearch, ...) * Inventory services (THREDDS, WAF, ...) * Access services (WCS, WMS, ...)
Broker catalog use cases
* Addition of new heterogeneous server nodes to the existing capabilities (the MACC WCS was added) * Addition of new interfaces to the available services * Using GI-cat through the GI-go geobrowser client * Using GI-cat through the GI-portal light client
Discovery standards
* Metadata standards (ISO 19115/ISO 19139) * ISO19139 publishing mechanisms (FileSystem, Web Accessible Folder-WAF, Native XML Database-NXD, CSW/ISO) * CSW queryables review (ISO properties for discovery)
Access
* OGC services (WCS, WMS, WFS, SOS) * Metadata conventions (CI_OnlineResource) for OWS data access * Brokered-access (EuroGEOSS access broker)
Interoperability
* The Air Quality Community Catalog (metadata and service interfaces, functionalities and role) * Test outcomes of GI-cat federating the Air Quality catalog * uFind functionalities and features (with a demo of uFind faceted-search); the facets are encoded in metadata keywords, as key-value-pairs with the syntax <facet>:<value>
Other issues
* AQ metadata for discovery: what are the facets of description for AQ data? * AQ data granularity level * How can the AQ Community Catalog and GI-cat complement each other effectively?
Discussion summary
We should collaborate for raising awareness of GCI principles among the AQ CoP, for example: about semantic discovery, where there already exist an AQ controlled vocabulary (derived from CF conventions); about integration and reuse of access facilitators/helpers (uFind, GI-axe)
Three possible practical actions with respect to EuroGEOSS:
* Shepherd the AQCC into EuroGEOSS * Harmonize AQCC and EuroGEOSS (e.g. wrt semantics) * Leverage EuroGEOSS accessors/adaptors
