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HESA Student Record 2007/08

HESA Student Record 2007/08. Catherine Benfield Head of Operations Development Kyle Summers Head of Software Development. Session Outline. Update on documentation Catherine Validation Kyle. Documentation. Major update (Version 2.0) released before Christmas *J specification

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HESA Student Record 2007/08

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  1. HESA Student Record 2007/08 Catherine Benfield Head of Operations Development Kyle Summers Head of Software Development

  2. Session Outline • Update on documentation • Catherine • Validation • Kyle

  3. Documentation • Major update (Version 2.0) released before Christmas • *J specification • New guidance documents on Modules and Courses • Sample XML data • Responses to queries raised at seminars and to email box

  4. Updates • Documentation now at Version 2.3 • Further updates will provide more guidance and necessary changes

  5. What else is HESA working on? • V0.1 validation rules • Specification of the HIN process • Standard groupings, populations and other derived fields • Internal database structure • Formalising arrangements with JCQ • Finalising specification for the Aggregate Overseas Record

  6. Software support • Working with software houses • Consultancy • User groups • Exploring other support mechanisms with UCISA • Institutions with in-house systems

  7. For the future • Re-specification of: • PIs • TQI • NSS population • POPDLHE • Check documentation design • What else do you need from us?

  8. Validation kits View Print Save Student data Validation kit Validation result Schema Business Rules

  9. Types of checks • Structural (schema or XSD) • Business rules

  10. Structural • Everything exists where expected • Fields contain valid codes This field must contain a valid date An Instance must appear within a Student This field may contain one of the following valid values: xxx, yyy, zzz

  11. Business rules • Fields contain relevant values Code x can only be used if Instance.FIELD is coded y Instance.FIELD must exist where institution is in Wales Instance.COMDATE must be before Instance.ENDDATE

  12. Business rules What do they do? • Compare fields within an entity • Compare fields across entities

  13. Business rules What don’t they do? • Duplication checks across the entire return • Checks for postcodes • HIN checks

  14. How do business rules work? Introducing Schematron A language for making assertions about patterns found in XML documents

  15. Schematron • Uses XML to express rules • Compares XML elements <rule context="TTCID"> <report test="(.='0' or .='3' or .='4' or .='5') and ../TQSSEC"> Course.TQSSEC must not be completed if Course.TTCID contains codes 0, 3, 4 or 5 </report> </rule>

  16. Schematron • Rules used to produce XSLT files <xsl:template match="TTCID" priority="4000" mode="M1"> <xsl:if test="(.='0' or .='3' or .='4' or .='5') and ../TQSSEC"> <li><a href="#{generate-id(.)}" target="_self" title="Link to where this pattern was found..."> Course.TQSSEC must not be completed if Course.TTCID contains codes 0, 3, 4 or 5 </a></li> </xsl:if> <xsl:apply-templates mode="M1"/> </xsl:template>

  17. Schematron • XSLT files used to process student data • Result is a list of errors formatted as … XML

  18. Validation kit • New validation kit software • New validation techniques • Graphical interface • Check for latest rules

  19. Graphical interface • Hides the complexities • Select data file and collection within the kit • View results within the validation kit • Optionally save or print the results

  20. Latest rules • Each set of rules identified uniquely • Automatic check for newer rules from the HESA website

  21. Results • List errors … or congratulations • View erroneous data in context • Save or print error list

  22. Other software How can other software systems use these validation checks? • Schema • Ensures the data is in the right language • Freely available on the HESA web site • Schematron • Ensures the data makes sense • The XSLT files available for download Uses industry standard techniques

  23. Progress • Basic techniques are working • Performance testing the options available • Provide more information on the web site

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