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Destinations of Leavers from Higher Education record 2011/12

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Destinations of Leavers from Higher Education record 2011/12

Glossary of terms


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Version 1.0 Produced 2011-05-18

In any technical documentation certain terms must be clearly defined in order to achieve a common understanding of the principles and concepts covered. The following terms need to be understood in order to fully understand the specification of the record.

Data Model

The specification of the Destinations of Leavers from Higher Education record begins with the data model. A data model (sometimes known as an Entity Relationship Model) defines the entities covered by the specification and the relationship between the entities.

Entities have attributes; for example, Salary is an attribute of Employment. Therefore, a field is an attribute of an entity. This documentation uses the structure Entity.SHORTFIELDNAME (e.g. Employment.SALARY) when referring to specific fields.

XML

The Destinations of Leavers from Higher Education record must be submitted as an XML (eXtensible Markup Language) file. An XML file contains elements. An element is identified using tags (defined with 'pointy brackets') and each element must have a start tag and an end tag. Each tag contains the element name and the end tag also contains a / character.

Elements can contain data; for example, the Salary element might look like this:

      
    <SALARY>15000</SALARY>

Elements can be nested within other elements to represent hierarchical data structures. Therefore, in the Destinations of Leavers from Higher Education record an element can be an entity or an attribute (i.e. a field). For example, this Employment entity has attributes of; Job title, Standard Occupational Classification 2010, Job duties, and Employment basis.

  
  <Employment>
    <JOBTITLE>Stuck In The Mud Champion</JOBTITLE>
    <SOCDLHE2010>34410</SOCDLHE2010>
    <JOBDUTIES>Running</JOBDUTIES>
    <EMPBASIS>03</EMPBASIS>
  </Employment>

XML Schema Definition (XSD)

The specification of an XML structure is contained in an XML Schema Definition (XSD) file. This defines the elements, their optionality and their structure. Specifically:

  • The XSD defines the minimum and maximum occurrences for each element. If the minimum is one then the element has to be present in every case; a value of zero implies that there are cases where this element does not occur - these will be controlled through validation rules.
  • The XSD defines the nesting of elements - which in this case means defining which fields belong to which entity as well as defining the hierarchical structure of the entities.
  • The XSD defines the data types. This includes defining lists of valid entries, charactersets for name fields as well as defining which fields are date or numeric.
  • The XSD defines the order that elements must appear in within submitted files. This can be different to the order that they are presented within the coding manual.

Institutions will be able to use freely-available software called a validating parser to compare their XML files against the XSD. This will perform many (though not all) of the validation checks that were previously undertaken by the validation kits.

Detailed Specification Documentation

The documentation produced to support the specification of the record includes a formatted list of the elements (both entities and fields) and a full description of each element. The index page includes a simple menu bar to filter elements by country.

The pages that describe the elements follow a standard format, which is shown below. Not every category shown below applies to every element.

Short name The abbreviated version of the element name. The short names for the entities conform to the naming principles of ISO11179
Type Type will either be field or entity. The entity type includes nested elements which hold repeating groups of fields.
Description A brief description of the element.
Question The text used in the questionnaire.
Applicable to This lists which countries the element applies to.
Coverage This defines when the element must be completed.
Base data type The XML data type for this element. The specification of XML includes a number of simple data types which begin xs:. All other data types are defined by HESA in the XML schema definition files.
Field length This is a maximum field length. Other rules about the structure of an element are enforced through the specification of the data type.
Part of The parent element that owns this element.
Minimum occurrences The minimum number of times this element can occur in the parent element. This value will be set to zero when other (more complex) coverage rules apply.
Maximum occurrences The maximum number of times this element can occur in the parent element.
Has parts When an element contains nested elements, they are listed here.
Required for valid response This defines when the field must be completed for the response to be valid.
To be asked of third party This defines when the question must be asked of a third party.
Reason required A statement of the reason this element is required.
Examples Examples to aid understanding.
Notes Notes and further guidance.
Owner The organisation or body that owns the specification of this element.
Version A version number to aid change management.
Based on Describes whether a field is new in 2011/12, or if based on a field in the 2010/11 record.
Schema components Links to the parts of the XML schema definition that are relevant to this element. These links open in a new window.
Change management notes Notes to record changes between versions.
Valid entries and labels Where applicable, a full list of the valid entries and labels is included.

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