ISO 19115/19139

Contents

Tip

This standards family is recommended for all discovery metadata.

Note

A subset of this standards family is supported by the BAS Metadata Library.

ISO 19115

The ISO 19115 standards family describes geographic resources, such as datasets, products and services. ISO 19115 is an abstract standard, defining an information model only.

It consists of several parts/revisions (listed here in chronological order):

Note

BAS has purchased copies of these standards. Contact the UK PDC for more information.

There are successor parts/revisions to this standard under review (and not currently supported):

ISO 19139

The ISO 19139 standards family describes how to encode the 19115 information model using XML. ISO 19139 is a standard encoding, consisting of XML schemas, schematrons and transformations (XLSTs).

It consists of several parts/revisions (listed here in chronological order):

Note

BAS has purchased copies of these standards. Contact the UK PDC for more information.

There are successor parts/revisions to these standard under review (and not currently supported):

There are additional related parts to this standard under review (and not currently supported):

Note

BAS has purchased copies of these standards. Contact the UK PDC for more information.

Profiles

There are various profiles for the ISO 19115 standards family that constrain its use for interoperability within various initiatives.

Examples of profiles defined by external organisations:

Profiles defined within BAS:

Vocabularies

The ISO 19115 standards family uses controlled vocabularies for two concepts:

Code lists

Code lists defined controlled lists of values for specific properties, such as date types (created, updated, etc.). ISO publish official code lists for both 19115:2003 and its successor 19115:2014:

Note

BAS records use both these lists for different elements, as the latter are more expansive and provide critically needed values, such as 'released' for describing resource embargo's.

Descriptive keywords

There are a number of descriptive keywords that can be used within records, including:

Note

Keywords can describe a number of different aspects, such as topics, places, providers, etc.

Validation

The ISO 19115 standards family uses two methods for checking records comply with the standard:

XSD Schemas

XML Schema Definitions (XSDs) for ISO 19139:2007 are available from ISO.

Tip

The BAS Metadata Library can Validate Records against these schemas.

Note

Constructing a complete validation/dependency chain for these schemas is quite difficult. A set of resolved schemas is available from, and used within, the BAS Metadata Library.

These schemas are customised to use relative imports and a single version of the GML and GMD schemas.

Schematrons

XML Schematrons for ISO 19139:2007 are available from the Open Geospatial Commission (OGC).

Warning

The BAS Metadata Library does not validate records against these schematrons.

JSON Schemas

JSON Schemas for the unofficial JSON encoding of ISO 19115 used in the BAS Metadata Library are available for local validation.

Note

This JSON encoding is specific to the use of ISO 19115 within BAS. It is not a general purpose, or necessarily correct, encoding and should not be relied on by others.

XML stylesheets

ISO HTML

The ISO 19115 to HTML stylesheet from the National Centers for Environmental Information (NCEI), presents metadata in a more readable form than raw XML, whilst reflecting the structure and property names of the ISO 19115 data model.

Note

This stylesheet supports both ISO 19115:2003 and ISO 19115-2:2009.

A copy of this stylesheet is available from:

https://metadata-resources.data.bas.ac.uk/xml-stylesheets/iso-html/xml-to-html-ISO.xsl

To use this stylesheet in an ISO 19115 record:

<?xml version='1.0' encoding='utf-8'?>
<?xml-stylesheet type="text/xsl" href="https://metadata-resources.data.bas.ac.uk/xml-stylesheets/iso-html/xml-to-html-ISO.xsl"?>
<gmi:MI_Metadata>...</gmi:MI_Metadata>

ISO Rubric

The SpiralTracker Report stylesheet, from the National Centers for Environmental Information (NCEI), assesses the quality of a metadata record against various measures, including discoverability.

Note

This stylesheet supports both ISO 19115:2003 and ISO 19115-2:2009.

A copy of this stylesheet is available from:

https://metadata-resources.data.bas.ac.uk/xml-stylesheets/iso-rubric/isoRubricHTML.xsl

To use this stylesheet in an ISO 19115 record:

<?xml version='1.0' encoding='utf-8'?>
<?xml-stylesheet type="text/xsl" href="https://metadata-resources.data.bas.ac.uk/xml-stylesheets/iso-rubric/isoRubricHTML.xsl"?>
<gmi:MI_Metadata>...</gmi:MI_Metadata>