The elements of the MEDIN discovery standard Becky Seeley, DASSH & MEDIN helpdesk

The elements of the MEDIN discovery standard

Becky Seeley, DASSH & MEDIN helpdesk

Metadata obligations

• MandatoryThe element must be filled in.e.g. Resource title

• ConditionalThe element must be filled in if it exists.e.g. Date of Publication

• OptionalThe element can be filled in.e.g. Alternative title

Resource typeChoose one from a controlled vocabulary

Dataset series (project)A set of surveys linked by a common

purpose.DatasetA survey/ cruise/GI Layer, may include

work undertaken over several yearsServiceA spatial data servicee.g. View service, download service, transformation

service

Image copyright © Becky Seeley

Identification elementsFile Identifier One must be provided. Identifies the metadata file.Recommended to use a hexidecimal code

for this identifiere.g. 79557726-b60a-4cf3-a8fd-9799c603d4dc

Parent IDOne must only be provided for a dataset if

is part of a series with a metadata record. Identifies the series record that the dataset is related to.

e.g. 79557726-b60a-4cf3-a8fd-9799c603d4dc


Resource TitleOne must be provided

The title is used to provide a precise description of the resource. It is advised that acronyms and abbreviations are reproduced in full.

Recommended format: 'Date' 'Originating

organization/programme' 'Location' 'Type of survey'.

e.g. 1992 Centre for Environment, Fisheries and Aquaculture Science (Cefas) North Sea 2m beam trawl survey.

Identification elements


Identification elementsAlternative titleSeveral may be provided

Other names by which the resource may be known as. May include short name, other name, acronym or alternative language title.

e.g. MarLIN Volunteer Sighting records.


Identification elementsResource languageOne or more must be selected from a

controlled vocabulary

The language used in the data resource e.g. For datasets in English the term is English and the

code is eng


Identification elementsAbstractOne must be provided.

Clear and brief statement of resource content.

• What has been recorded, • what form the data takes, • what purpose it was collected for, • any limiting information, i.e. caveats on

the use and interpretation of the data such as gaps in a time series or missing data (use and access limitations are covered in other elements).


Identification elementsResource locatorOne must be provided if resource is

available online.

Resource locator url The URL (web address) and must include

the http:// at the start of the addresse.g.http://www.dassh.ac.uk/DASSHDT000345

Resource locator name A name for the websitee.g. DASSH view and download service


Identification elementsUnique resource identifierOne must be provided. This is a unique

code for the resource.

Code A unique code. No spaces allowed,e.g. 5639287 e.g. WMS-2001_ESD01

Code SpaceA URL (web address) for the originating

organisatione.g. http://www.mba.ac.uke.g. http://ukho.gov.uk


Classification elementsTemporal referencesOne of these elements must be provided

Temporal extent Begin -The start dateEnd - The end date if it existse.g. 2011-04-23

Date of publication (of the resource)Date of last revision (of the resource)Date of creation (of the resource)These dates are made up of two parts;

Date type – from an ISO controlled vocabulary e.g. Creation, Revision or Publication

Date – the date e.g. 2011-02-19


Classification elementsSpatial reference systemOne must be provided for datasets and series

and for services where applicable

Describes the system of spatial referencing (typically a coordinate reference system) used in the resource. This should be derived from the EPSG register

e.g. National Grid of Great Britain – urn:ogc:def:crs:EPSG::27700


Classification elementsTopic category At least one must be provided for datasets and series

(not for services)e.g. biota

INSPIRE themeAt least one must be providede.g. geology

KeywordsAt least one should be provided

Strongly recommend the use of the BODC Parameter

Discovery Vocabulary e.g. Zoobenthos taxonomy-related counts


Classification elementsExtent Several may be included Keywords selected from controlled

vocabularies to describe the spatial

extent of the resource. Recommend using the Seavox vocabulary also can use others.

e.g. Irish Sea and St Georges Channel Vertical extent keywordsAt least one must be provided if a vertical

spatial reference system not included.e.g. Sediment boundary


Classification elementsGeographic Bounding box(es)One or more must be provided.Represent the geographical bounding

box(s) of the resource's extent in decimal degrees. Multiple bounding boxes are allowed to describe datasets or series which have a disparate geographic coverage.

West bounding longitudeEast bounding longitudeNorth bounding latitudeSouth bounding latitude


Vertical extent informationMinimum Value One must be providedCan be positive or negative

Maximum Value One must be providedCan be positive or negative

Vertical coordinate reference system One must be provided. Must be

referenced e.g. EPSG registry

e.g. urn:ogc:def:crs:EPSG::5701 We have just created a CRS for ‘sea level’

Classification elements


Limitations on public accessOne must be providedAny limitations on access to the datae.g. Freely available, e.g. Full access restricted, public acces at 10KM resolution

available

Conditions applying for access and use

One must be providedAny conditions on use of the resourcee.g. Not suitable for navigatione.g. Available under UKHO licence e.g. Freely available under DASSH Terms and

Conditions

Quality and use elements


Additional information sourceSeveral may be providedAny references to external information that

are considered useful, e.g. project website, report, journal article may be recorded.

e.g. Malthus, T.J., Harries, D.B., Karpouzli, E., Moore, C.G., Lyndon, A.R., Mair, J.M., Foster-Smith, B.,Sotheran, I. and Foster-Smith, D. (2006). Biotope mapping of the Sound of Harris, Scotland. Scottish Natural Heritage Commissioned Report No. 212 (ROAME No. F01AC401/2).

e.g. http://www.cefas.co.uk/publications/files/datarep42.pdf



Lineage One must be provided

Lineage includes the background information, history of the sources of data used and can include data quality statements. The lineage element can include information about: source material; data collection methods used; data processing methods used; quality control processes. Please indicate any

data collection standards used. Quality of lineage important!





INSPIRE Conformance

Specification At least one must be provided if claiming

INSPIRE conformance

Title – of specificationDate type – recommend using ‘publication’Date

Degree of conformity True or False

Explanation (C) e.g. All mandatory and conditional items were completed



Spatial resolutionOne must be provided (units metres) where

distance can be specified.

The average distance (i.e. resolution) between sampling locations in metres. For example, if a dataset was composed of a grid of stations which have an average distance between stations of 2 km then 2000 metres should be

recorded. e.g. 1000



Frequency of updateOne must be provided if known from a

controlled vocabulary.

This describes the frequency that the resource (data set) is modified or updated and should

be included if known.

e.g. monthlye.g. notplanned

Contact elementsContacts for the metadata Who manages the metadata

Data custodian(s) Who manages the resource

The resource originator(s) Who created the resource

Distributor(s) Who else distributes the resource


Contact elementsResponsible party sub elementsIndividual nameJob Position (recommended). Organization namePostal address (recommended)Telephone number (recommended)Facsimile number Email address

Responsible party role From a controlled vocabulary e.g. Custodian, Point of contact


Metadata elementsMetadata date The date the metadata record was last

updatede.g. 2011-03-19

Metadata standard name e.g. Medin Discovery Standard

Metadata standard versione.g. 2.3.4

Metadata language e.g. eng


Coupled resourceIdentifies the data resource(s) used by

the service if these are available separately. You should supply the Unique resource identifiers of the relevant datasets.

Spatial data service type A special INSPIRE keyword identifying the

type of service.

Service elements


Guides to MEDIN metadata creation

• Full text and brief standard available for download from the MEDIN website www.oceannet.org

http://www.oceannet.org/

Thanks for listening!

Need more assistance?

There is a Frequently Asked Question section on the MEDIN website

www.oceannet.org

MEDIN helpdesk

Email: [email protected]

Phone: 01792 633291

http://www.oceannet.org/

mailto:[email protected]

Documents

The elements of the MEDIN discovery standard Becky Seeley, DASSH & MEDIN helpdesk