Classifications and Standards in Statistics New Zealand by Lwjp86


									Classifications and Standards
   Statistics New Zealand

         Prepared by Andrew Hancock
         Classification and Standards
Statistical Classifications in New Zealand
• Since 1993 there has been a centralised classifications unit
  (C&S) based in Christchurch

• C&S is responsible for developing, maintaining and
  implementing standard classifications across the Official
  Statistical System (OSS)

• C&S provides classifications best practice advice to survey and
  administrative collections

• C&S assists integration across surveys so that each area within
  Statistics NZ uses the same standards and classifications that
  best fit their survey needs
Classification Types
• Classifications used by Statistics NZ are assigned a
  classification type based on ownership, the proposed use of the
  classification and the resulting stakeholder consultation.

• All classifications in use at Statistics NZ must be approved by
  the appropriate authority, currently the Standards Governance
  Board (SGB) and/or the Government Statistician (GS):

        •   International Classification
        •   New Zealand Standard Classification
        •   Standard Classification
        •   Independent Classification
Classification Types (cont)

                             Statistical Classification

                                                   New Zealand Standard
    International Classification

                                                   Standard Classification

                                                 Independent Classification
Classification Types (cont)
• International classifications if adopted are usually modified to
  New Zealand conditions and made into New Zealand Standard

• Harmonised classifications are ones developed with the
  Australian Bureau of Statistics

• Standard classifications are ones used across many surveys

• Independent classifications are survey specific classifications
Major Classifications
• ANZSIC - Industry        •   Airroutes
• ANZSCO - Occupation      •   Areas
• ANZSRC - Research        •   Currency
• NZBEC - Broad Economic   •   Ethnicity
• NZHSC - Trade
                           •   Households and
• NZSCC - Country
• NZSCNPO - Non-profit
                           •   Iwi
                           •   Language
• NZSTC - Level of
  Processing               •   Qualifications
                           •   Religion
Classification Review Process
Current Review Work
•   ANZSCO update (released 31 March 2009)

•   ANZSIC06 update just released

•   Households and Families review in progress

•   Standard Coding Tool Policy and Review

•   Geospatial/Areas review (starting January 2009)

•   Metadata Project

•   Institutional Sector review (planned for 2009)

•   Classifications Best Practice Documentation
Classifications Best Practice
• Defines a statistical and standard classification

• Defines guidelines on principles to consider when developing

• Details essential components of classifications

• Has a checklist for developing a classification

• There is a basic version and a technical version
Industry Classification (ANZSIC06)
•   Is an Australian and New Zealand developed classification
•   Aligns with ISIC Rev 4
•   Uses a supply-side basis concept
•   Is a four level hierarchical classification
•   Has a supporting Output classification
•   Has a strong implementation process supported by
        •   Dual Coding Process
        •   Backcasting guidelines
        •   Time-series concordances
        •   Web enabled Classification Code Finder
Product Classifications
• Previously had ANZSPC – based on CPC V1.0

• ANZSPC decommissioned by ABS and Statistics NZ

• Users will concord to CPC V2.0

• ABS and Statistics NZ working closely together on linking to
  CPC V2.0
Classifications Management System
•   CARS stands for Classifications and Related Standards
•   CARS is an on-line computer package used when storing and
    working with classifications
•   CARS stores classification data such as:

         • classification definitions

         • classification versions

         • concordances (translations between versions)

         • synonyms used for coding survey responses
Objectives of the CARS system
• To provide centralised classification storage, maintenance and
  access facilities for all classification data used in the
  development and processing of surveys

• To facilitate the use of standard classifications in all statistical

• To facilitate the comparison and analysis of data by storing

• To provide common ways to update and access classifications
CARS Environment
• CARS is a generalised classification system which was
  developed as part of the Statistics NZ upgrade from a
  mainframe to a client/server environment

• Uses 32 bit Centura SQL Windows as client software

• Uses Sybase (v12.5) as the data repository

• Uses Sybase views and stored procedures to access data
CARS Environment   (cont)


        BF     TSM          WEB
SNZ Website

Classifications and Standards

Classification Code Finder
Classifications and Standards
   Statistics New Zealand

         Prepared by Andrew Hancock
         Classification and Standards

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