2.6.8 Exchanging metadata

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2.1 Introduction to Metadata

2.1.1 What is metadata?
2.1.2 Why metadata?
2.1.3 What can you do with it?
2.1.4 Where can you find metadata?
2.1.5 Applications
2.1.6 Discovery discovery

2.2 Metadata standards

2.2.1 What is a standard for?
2.2.2 Standards for geo-information
2.2.3 Metadata standards
2.2.4 INSPIRE
2.2.5 Discovery standards

2.3 Metadata in the working process

2.3.1 How do you make metadata?
2.3.2 How do you make metadata from services?
2.3.3 Where in the working process?
2.3.4 Tips for gathering metadata
2.3.5 Publishing metadata
2.3.6 Harvesting
2.3.7 Validating
2.3.8 Discovery working process

2.4 Metadata elements

2.4.0 Overview of metadata elements
2.4.1 Title of the resource
2.4.2 Summary
2.4.3 Status
2.4.4 Level of hierarchy
2.4.5 URL
2.4.6 Protocol
2.4.7 Name
2.4.8 Unique Identifier of the resource
2.4.9 Language of the resource
2.4.10 Subject
2.4.11 Keyword
2.4.12 Thesaurus
2.4.13 Thesaurus date
2.4.14 Thesaurus date type
2.4.15 Minimum x-coordinate
2.4.16 Maximum x-coordinate
2.4.17 Minimum y-coordinate
2.4.18 Maximum y-coordinate
2.4.19 Temporal cover
2.4.20 Date of the resource
2.4.21 Date type of the resource
2.4.22 Grade of the description of quality
2.4.23 General description of origin
2.4.24 Scale of application
2.4.25 Resolution
2.4.26 Code Reference system
2.4.27 Responsible organisation for namespace reference system
2.4.28 Conformity indication with the specification
2.4.29 Clarification
2.4.30 Specification
2.4.31 Specification date
2.4.32 Specification date type
2.4.33 Legal restrictions to accessibility
2.4.34 Other constraints
2.4.35 Security restrictions
2.4.36 User constraints
2.4.37 Responsible organisation resource
2.4.38 Responsible organisation resource: email
2.4.39 Responsible organisation resource: role
2.4.40 Metadata unique identifier
2.4.41 Parent unique identifier
2.4.42 Responsible organisation metadata
2.4.43 Responsible organisation metadata: role
2.4.44 Responsible organisation metadata: email
2.4.45 Metadata date
2.4.46 Language of the metadata
2.4.47 Metadata standard name
2.4.48 Metadata Standard version
2.4.49 Discovery metadata for data

2.5 Metadata elements for services

2.5.0 Metadata elements for services overview
2.5.1 Resource Title
2.5.2 Resource abstract
2.5.3 Resource type
2.5.4 Resource locator
2.5.5 Connect Point Linkage
2.5.6 Coupled resource
2.5.7 Scoped Name
2.5.8 Coupling Type
2.5.9 Spatial data service type
2.5.10 Service Type Version
2.5.11 Operation Name
2.5.12 DCP
2.5.13 Keyword value
2.5.14 Originating controlled vocabulary
2.5.15 Geographic location
2.5.16 Temporal Reference
2.5.17 Spatial resolution
2.5.18 Degree
2.5.19 Specification
2.5.20 Constraints
2.5.21 Conditions applying to access and use
2.5.22 Responsible party
2.5.23 Responsible party role
2.5.24 Metadata point of contact
2.5.25 Metadata language
2.5.26 Metadata date
2.5.27 The link to the metadata of the dataset and dataset series from the service
2.5.28 Discovery metadata for services

2.6 What you should also know

2.6.1 Bordering rectangle
2.6.2 Reference system
2.6.3 Geo shared licence
2.6.4 Optional set metadata of data
2.6.5 Multilingual metadata
2.6.6 Object and attribute information
2.6.7 Guidelines for sectors
2.6.8 Exchanging metadata


Metadata of datasets and dataset series

The metadata from datasets and dataset series is exchanged in the encoding (XML) in accordance with:

http://schemas.opengis.net/iso/19139/20060504/ (ISO 19115 metadata elementen)

This encoding is suitable for enabling exchanges to be made between OGC catalogues (CSW). The following schemes have to be used for the catalogue:


- OGC Catalogue Service 2.0.2 http://schemas.opengis.net/csw/2.0.2/ - ISO Metadata Application Profile 1.0.0 http://schemas.opengis.net/csw/2.0.2/profiles/apiso/1.0.0/

Explanation OGC Catalog Service (2.0.2): These are the schemes that define the interfaces and the core model of the basic catalogue service. ISO Application Metadata Profile (1.0.0): This is the basic scheme of the ISO Application Profile for the OGC Catalogue Service 2.0.2. This scheme is linked to ISO 19139.



Metadata of services

The metadata of services is exchanged in the encoding (XML) in accordance with:


http://schemas.opengis.net/csw/2.0.2/profiles/apiso/1.0.0/ (ISO 19119 metadata elementen) This encoding also uses: http://schemas.opengis.net/iso/19139/20060504/ (ISO 19115 metadata elementen) and is suitable for making exchanges between OGC catalogues (CSW).



Another way is to use the capabilities document, which must be made available (mandatory) with each OGC service, to describe a part of the metadata elements. In the practical guideline for publishing geo data services a mapping out of the capabilities documents for WMS and WFS to http://schemas.opengis.net/csw/2.0.2/profiles/apiso/1.0.0/ has been made. In this way, the capabilities can be used as encoding as well. Most of the catalogues can (will) harvest capabilities.


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