[SDI-Europe] Temporal Metadata for Discovery: a review of current practice

[Kate Lance]

http://www.ec-gis.org/inspire/reports/TemporalMetadataforDiscovery
Temporal Metadata for Discovery: a review of current practice
This report contains the findings of a study on temporal metadata for discovery
commissioned by the Spatial Data Infrastructures Unit of the European Commission 
Joint Research Centre to AMI SARL. of Luxembourg.

The international Drafting Team advising the European Commission on the 
preparation of the draft Implementing Rules for Metadata recognised that almost all 
themes have some requirements for temporal information which could be a factor in 
searching for data, and that there are other themes, particularly in Annex
III (Atmosphere, Meteorology and Oceanography) where the data are fundamentally
temporal, and where the classification of repositories, let alone data, is commonly 
organised by date and time. It would therefore be ineffective to address these themes 
without including temporal information in the INSPIRE discovery metadata.

The Metadata Draft Implementing Rules (IR) identified general requirements, which 
may not be achievable with present mechanisms. These requirements are currently 
either inadequately specified in metadata standards or are poorly (or not at all) 
implemented in existing search mechanisms using metadata. Since the remit of the 
Drafting Team is to identify detailed requirements and to describe best practice, or to 
recommend new directions, the IR deferred the detailed specification of temporal 
extent metadata for handling fundamentally temporal themes to the results of this 
study.


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