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UK GEMINI id

Element name

Obligation

Number of occurrences

Dataset and series

Service

Revision date

1

Title

Mandatory

Single

March 2019

2

Alternative title

Optional

Multiple

April 2020

3

Dataset language

Mandatory

Multiple

n/a

September 2018

4

Abstract

Mandatory

Single

March 2019

5

Topic Category

Mandatory when the data resource is a dataset or dataset series. Not applicable to services.

Multiple

n/a

March 2019

6

Keyword

Mandatory

Multiple

May 2019

7

Temporal extent

Mandatory for datasets and dataset series

Multiple

May 2018

8

Dataset reference date

Mandatory

Multiple

March 2019

10

Lineage

Mandatory

Single

n/a

March 2019

15

Extent

Optional

Multiple

August 2010

16

Vertical extent information

Optional

Multiple

March 2019

17

Spatial reference system

At least one coordinate reference system shall be given

Multiple

March 2019

18

Spatial resolution

Conditional - where a resolution distance can be specified

Multiple

March 2019

19

Resource locator

Conditional - Must be supplied when online access is available

Multiple

July 2009

21

Data format

Mandatory

Multiple

n/a

March 2019

23

Responsible organisation

Mandatory

Multiple

July 2009

25

Limitations on public access

Mandatory

Multiple

January 2020

26

Use constraints

Mandatory

Multiple

September 2018

27

Additional information

Optional

Single

n/a

October 2018

30

Metadata date*

Mandatory

Single

May 2018

33

Metadata language*

Mandatory

Single

September 2018

35

Metadata point of contact*

Mandatory

Multiple

July 2009

36

Resource identifier

Mandatory for datasets and dataset series

Multiple

n/a

May 2018

37

Spatial data service type

Mandatory

Single

n/a

July 2009

38

Coupled resource

Conditional - mandatory for View and Download services, optional for other service types.

Multiple

n/a

March 2019

39

Resource type*

Mandatory

Single

July 2009

41

Conformity

Mandatory

Multiple

April 2020

43

Equivalent scale

Optional

Multiple

July 2009

44

Bounding box

Mandatory

Multiple

December 2012

45

File Identifier*

Mandatory

Single

March 2019

47

Hierarchy level name*

Conditional, required when Resource type (ISO hierarchyLevel) is not "dataset".

Single

April 2020

48

Quality scope

Mandatory

Multiple

March 2019

49

Parent identifier*

Optional

Single

May 2018

50

Spatial representation type

Mandatory

Multiple

n/a

May 2018

51

Character encoding

Conditional (mandatory if an encoding is used that is not based on UTF-8, otherwise optional)

Multiple

n/a

May 2018

52

Data quality

Conditional: Topological consistency report is mandatory if the dataset includes types from the INSPIRE Generic Network Model and does not assure centerline topology (connectivity of centrelines) for the network, otherwise optional

Multiple

n/a

May 2018

53

Maintenance information

Optional

Single

n/a

April 2020

54

Metadata standard name*

Optional

Single

January 2020

55

Metadata standard version*

Optional

Single

January 2020

Note. Element numbers 9, 11, 12, 13, 14, 20, 22, 28, 29, 31, 32, 40 and 42 have been omitted because they were used to identify elements that have now been deleted from the Standard, and have not been reallocated to avoid confusion.