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NHS Data Model and Dictionary Service

Type:	Patch
Reference:	1592
Version No:	1.0
Subject:	Class: Attribute Keys
Effective Date:	Immediate
Reason for Change:	Patch
Publication Date:	24 October 2016

Background:

A Key is a set of Attributes or Relationships that uniquely identify an instance of a Class and is added to identify the unique items.

Key Attributes are inherited from the supertype Class.

This Patch updates the following Classes to remove the subtype Key Attributes as they are not required as the supertype Class has a Key Attribute:

• ACCOMMODATION is a subtype of PERSON PROPERTY.
  • The Class ACCOMMODATION has a Key Attribute of ACCOMMODATION STATUS CODE, which is not required as the Class PERSON PROPERTY has a Key of PERSON PROPERTY IDENTIFIER.
• ELECTIVE ADMISSION LIST is subtype of WAITING LIST.
  • The Class ELECTIVE ADMISSION LIST has an Attribute of ELECTIVE ADMISSION LIST NUMBER, which should not be a Key as PERSON PROPERTY has a Key Attribute of PERSON PROPERTY IDENTIFIER.
• ETHNIC CATEGORY is a subtype of PERSON PROPERTY.
  • The Class ETHNIC CATEGORY has a Key Attribute of ETHNIC CATEGORY CODE, which is not required as the Class PERSON PROPERTY has a Key of PERSON PROPERTY IDENTIFIER.
• MENTAL HEALTH ACT LEGAL STATUS CLASSIFICATION is a subtype of PERSON PROPERTY.
  • The Class MENTAL HEALTH ACT LEGAL STATUS CLASSIFICATION has a Key Attribute of MENTAL HEALTH ACT LEGAL STATUS CLASSIFICATION CODE, which is not required as the Class PERSON PROPERTY has a Key of PERSON PROPERTY IDENTIFIER.
• PERSON MARITAL STATUS is a subtype of PERSON PROPERTY.
  • The Class PERSON MARITAL STATUS has a Key Attribute of PERSON MARITAL STATUS CODE, which is not required as the Class PERSON PROPERTY has a Key of PERSON PROPERTY IDENTIFIER.
• PRESCRIPTION is a subtype of SERVICE REQUEST.
  • The Class PRESCRIPTION has an Attribute of PRESCRIPTION IDENTIFIER, which should not be a Key as SERVICE REQUEST has a Key Attribute of SERVICE REQUEST IDENTIFIER.
• SEXUAL ORIENTATION is a subtype of PERSON PROPERTY.
  • The Class SEXUAL ORIENTATION has a Key Attribute of SEXUAL ORIENTATION CODE, which is not required as the Class PERSON PROPERTY has a Key of PERSON PROPERTY IDENTIFIER.
• SOCIO ECONOMIC CLASSIFICATION is a subtype of PERSON PROPERTY.
  • The Class SOCIO ECONOMIC CLASSIFICATION has a Key Attribute of SOCIO ECONOMIC CLASSIFICATION CODE, which is not required as the Class PERSON PROPERTY has a Key of PERSON PROPERTY IDENTIFIER.

To view a demonstration on "How to Read an NHS Data Model and Dictionary Change Request", visit the NHS Data Model and Dictionary help pages at: http://www.datadictionary.nhs.uk/Flash_Files/changerequest.htm.

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Summary of changes:

Diagrams
CHILDREN AND YOUNG PEOPLE'S HEALTH SERVICES DIAGRAM	Changed Diagram
DIAGNOSTIC IMAGING DIAGRAM	Changed Diagram
HIV AND AIDS DIAGRAM	Changed Diagram
NATIONAL WORKFORCE DIAGRAM	Changed Diagram
PRESCRIBING AND DISPENSING DIAGRAM	Changed Diagram
RADIOTHERAPY DIAGRAM	Changed Diagram
Class Definitions
ACCOMMODATION	Changed Attributes
ELECTIVE ADMISSION LIST	Changed Attributes
ETHNIC CATEGORY	Changed Attributes
MENTAL HEALTH ACT LEGAL STATUS CLASSIFICATION	Changed Attributes
PERSON MARITAL STATUS	Changed Attributes
PRESCRIPTION	Changed Attributes
SEXUAL ORIENTATION	Changed Attributes
SOCIO-ECONOMIC CLASSIFICATION	Changed Attributes

Date:	24 October 2016
Sponsor:	Richard Kavanagh, Head of Data Standards - Interoperability Specifications, Architecture, Standards and Innovation, NHS Digital

Note: New text is shown with a blue background. Deleted text is crossed out. Retired text is shown in grey. Within the Diagrams deleted classes and relationships are red, changed items are blue and new items are green.

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For enquiries about this Change Request, please email information.standards@nhs.net

• Page last Published - 24 October 2016

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