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2011 Population Census of Hong Kong Interactive Data Dissemination Service 27-29 November 2012

2011 Population Census of Hong Kong Interactive Data Dissemination Service 27-29 November 2012 John Hon-kwan LAM Census and Statistics Department Hong Kong. Background. Hong Kong’s Population Census Since 1961 Conducted every ten years

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2011 Population Census of Hong Kong Interactive Data Dissemination Service 27-29 November 2012

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  1. 2011 Population Census of Hong Kong • Interactive Data Dissemination Service27-29 November 2012 • John Hon-kwan LAM • Census and Statistics Department • Hong Kong

  2. Background • Hong Kong’s Population Census • Since 1961 • Conducted every ten years • Population By-census conducted in the middle of the intercensal period • Latest round of Population Census • 30 June – 2 August, 2011 (34 days)

  3. DISSEMINATION OF CENSUS DATA IN HONG KONG • Considerations • Usefulness of data • Convenience and ability of users to use and interpret the statistics properly • Technology advancement • Data confidentiality • Public awareness and accessibility of users • Consultations with major users • Government Bureaux and Departments • Academics and other organisations

  4. MAJOR DATA DISSEMINATION CHANNELS • Press conference • Analytical publications and feature articles • Main tables and district-based fact sheets • Interactive visualisations (Dashboards) • Tailor-made tabulations • Access to micro-data • Interactive Data Dissemination Service (IDDS)

  5. MAJOR DATA DISSEMINATION CHANNELS • Using the Internet • The launch of an online bookstore in Oct 2001 • Dedicated websites for data dissemination: • 2006 Population By-census (http://www.bycensus2006.gov.hk) • 2011 Population Census (http://www.census2011.gov.hk) • 1990s : CD-ROM bundled with GIS software  2008: Statistics on Map; Interactive Data Dissemination System (IDDS)

  6. IDDS • Since 2008 • Disseminate results of 2006 Population By-census • Allow users to build statistical tables and charts per own requirements • Internet-based • Simple and user-friendly • Step-by-step process • Major Features • Choosing the required statistical measure and analytical dimensions for tabulation; • Specifying how the dimensions are classified and displayed; • Customisation of the table built; • Generation of chart/thematic map; • Export table built in various file formats

  7. Major aspects of the IDDS enhanced for 2011 Population Census and

  8. Major aspects of the IDDS enhanced for 2011 Population Census and

  9. Major aspects of the IDDS enhanced for 2011 Population Census and

  10. MAJOR ISSUES FOR CONSIDERATION IN DEVELOPING THE IDDS • Participation of major stakeholders • Contributions of users, IT experts and statisticians  Success of the IDDS

  11. MAJOR ISSUES FOR CONSIDERATION IN DEVELOPING THE IDDS • System based on macro-data or micro-data - Balance between Meeting user <==>Protecting data Requirements confidentiality Macro-data approach: • Only macro-data files containing summarised statistics are stored in the IDDS • Also helps reduce response time • To cater for data confidentiality, data precision and system workload, tables up to 5 dimensions and 2 statistical measures can be produced

  12. MAJOR ISSUES FOR CONSIDERATION IN DEVELOPING THE IDDS • Ease of use versus system complexity Trade-off between user-friendliness <==> functionalities • Selection of statistical measure and dimensions is of upmost importance • One-page user interface consisting three different panels • selection of statistical measure • selection of classification variables • table • A few advanced system functions available in the old IDDS (e.g. sorting by row and suppression of empty row or column) are not available

  13. MAJOR ISSUES FOR CONSIDERATION IN DEVELOPING THE IDDS • Flexibility for further data expansion • Increased demand for access to wide scope of official statistics at more detailed level in an interactive and flexible manner • Design is scalable and flexible for further expansion • Importance of comprehensive system testing and workload estimation • Any interruption in interactive public services may have long-term impact on organisational images • System load tests should be performed several times before launch to ensure smooth function of the IDDS

  14. WAY FORWARD • Enhanced IDDS for 2011 Population of Hong Kong • Since the launch in mid-September 2012, more than 2000 visits, generating more than 23 000 statistical tables • To encourage the usage of IDDS through various promotion activities, including through regular publications, briefing to users in various occasions. • Continue to monitor user feedbacks and introduce improvement, if necessary. • Consideration will also be given to expanding the coverage of data to other themes of official statistics

  15. THANK YOU!

  16. STATISTICS ON MAP

  17. INTERACTIVE VISUALISATIONS

  18. IDDS FOR 2006 POPULATION BY-CENSUS

  19. Enhanced IDDS for 2011 Population Census

  20. CONCURRENT UPDATING UPON SELECTION

  21. GROUPING

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