Appendix

Acknowledgements

Authors

This specification is developed and maintained by the openEHR Specifications Editorial Committee

Contributors

This specification has benefited from formal and informal input from the openEHR and wider health informatics community.

Trademarks

'openEHR' is a registered trademark of the openEHR Foundation == Previous Versions

This specification is based on the types orginally defined in the openEHR Support Information Model from Release 1.0.3 of the Reference Model. Some changes have been made as follows.

The additional types Point_interval and Proper_interval have been added, to support the common need for a point value and a proper interval to be specified as substitutable types. The types Multiplicity_interval and Cardinality have been added, from the AOM2 specification.

Functional meta-types

A collection of meta-types representing routines, procedures and functions has been added, to support specifications that need to use these concepts.

Amendment Record

Issue Details Raiser Completed

Issue	Details	Raiser	Completed
BASE Release 1.2.0
1.2.0	SPECBASE-34: Allow +14:00 timezone.	S Iancu	22 Mar 2021
	SPECBASE-25: Improve and correct function definitions in Foundation types. Add 'nominal' computation functions to `Iso8601_date` and `Iso8601_date_time`. Add `negative()` functions to numeric classes and `Iso8601_duration`.	openEHR SEC	30 Apr 2020
BASE Release 1.1.0
1.1.0	SPECRM-72: Add guidance on date/time formatting, recommending extended ISO 8601 format.	B Lah	22 Nov 2018
	SPECBASE-15. Add foundation types specification to BASE component. Rename `Aggregate` to `Container` to be more consistent with current languages and also openEHR BMM.	T Beale	19 Jul 2018
	SPECPUB-6. Correct UML package nesting and paths in documents; insert `base` parent package.	T Beale	27 Nov 2017
0.7.6	Re-organise heading structure. Remove references to ISO 11404. Rename to 'Foundation types'; added type cross-reference table.	T Beale	17 Aug 2017
0.7.0	Initial Writing. Taken from openEHR RM Release 1.0.3 Support Model	T Beale	20 May 2016

BASE Release 1.2.0

1.2.0

SPECBASE-34: Allow +14:00 timezone.

S Iancu

22 Mar 2021

SPECBASE-25: Improve and correct function definitions in Foundation types. Add 'nominal' computation functions to Iso8601_date and Iso8601_date_time. Add negative() functions to numeric classes and Iso8601_duration.

openEHR SEC

30 Apr 2020

BASE Release 1.1.0

1.1.0

SPECRM-72: Add guidance on date/time formatting, recommending extended ISO 8601 format.

B Lah

22 Nov 2018

SPECBASE-15. Add foundation types specification to BASE component.
Rename Aggregate to Container to be more consistent with current languages and also openEHR BMM.

T Beale

19 Jul 2018

SPECPUB-6. Correct UML package nesting and paths in documents; insert base parent package.

T Beale

27 Nov 2017

0.7.6

Re-organise heading structure. Remove references to ISO 11404. Rename to 'Foundation types';
added type cross-reference table.

T Beale

17 Aug 2017

0.7.0

Initial Writing. Taken from openEHR RM Release 1.0.3 Support Model

T Beale

20 May 2016

The Amendment history relevant to the original content in this specification can be found here (a fully hyper-linked version may be found on the working baseline).