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Emerging Trends in Data Exchange and Data Hubbing Jacob Assa, UN Statistics Division Regional Workshop on Data Dissemination and Communication Manila,

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Presentation on theme: "Emerging Trends in Data Exchange and Data Hubbing Jacob Assa, UN Statistics Division Regional Workshop on Data Dissemination and Communication Manila,"— Presentation transcript:

1 Emerging Trends in Data Exchange and Data Hubbing Jacob Assa, UN Statistics Division Regional Workshop on Data Dissemination and Communication Manila, the Philippines June 20-22, 2012 United Nations Statistics Division 2012

2 2 Outline of the Presentation 1.Data Dissemination in Context 2.Dissemination History at UNSD 3.Dissemination versus Communication 4.Data Exchange and SDMX 5.Data Hubbing Nationally and Globally

3 3 Data Dissemination in Context  Virtual Value Chain : (Svend and Hollensen, 2001)  Dissemination – last but not least step  Often done as an afterthought  Can be made more efficient and effective:  From Data Publishing to Data Exchange  From Data Silos to Data Hubbing Organize, select and compile information Define information problem Synthesize information Distribute information Value

4 4 Dissemination History in UNSD  League of Nations – print publications  United Nations  – print publications (yearbooks, manuals)  – CD-ROM, static web pages  – online databases, dynamic web queries (UN Comtrade, UN Common Database)  2008 – launch of UNdata – UN System data portal  2010 – World Statistics Pocketbook app for iPhones and iPads  2012 – launch of CountryData – UN national data portal

5 5 Dissemination versus Communication One-way vs. two-way communication  Considerable evolution of statistical communication over recent years  Traditionally, statistical organizations focused on  Dissemination through printed publications  One-way communication through few media channels  Newspapers  Radio Television  Since 1990s, acknowledged need to do more than just disseminate data  Employing communication professionals  Widespread use of the Internet  New methods of communication and dissemination

6 6 Dissemination versus Communication New methods of communication:  Web 2.0 technologies  Blogs  Wikis  Social networks  Interactive websites  Allow users to upload data and create graphs  Sharing and discussion with other users

7 7  Paper questionnaires  Excel sheets  CSV files   Semi-structured  XML files  However, XML in itself is simply a mark-up language and does not standardize data structure between exchanging parties Data Exchange - Unstructured

8 8 XML - Example Philippines, GDP in constant 2000 US$ (World Bank) ,990,832, ,001,301, ,908,256, ,313,876,851

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10 10 Data Exchange - Structured Statistical Data and Metadata Exchange (SDMX)  What is it?  An initiative to foster standards for the electronic exchange of statistical information  Goal - explore e-standards that could increase efficiency gains and avoid duplication  Sponsored by BIS, ECB, EUROSTAT, IMF, OECD, UN, WB  What it is not  Not a technology…but implemented using technology (XML EDIFACT syntax and GESMES/TS message)  How does it work?  Exchange partners agree on Data Structure Definitions  Data and metadata exported and imported accordingly

11 11 Benefits of SDMX Protection of existing technology investments  Many different types:  Data warehouses  OLAP cubes  GESMES/TS  Publication systems  SDMX standardizes formats and protocols at the point where data and metadata go between counter-parties

12 12 REPOSITORY Provisioning Metadata REGISTRY Data Set/ Metadata Set REPOSITORY Structural Metadata Subscription/ Notification Register Query Submit Query Submit Query Describes data and metadata structures Describes data and metadata sources and reporting processes Indexes data and metadata SDMX Registry InterfacesSDMX Registry Interfaces SDMX Registry/Repository

13 13 Impact of the SDMX Registry  The SDMX Registry allows for one of the major efficiency gains possible with SDMX:  Shifting from “push”-based reporting to “pull”- based reporting  This can save lots of time and duplication of effort

14 14  Specifies a set of concepts which describe and identify a set of data  Tells which concepts are the dimensions (identification and description) and which are attributes (just description)  Tells which code lists provide the possible values for the dimensions and attributes What is a Data Structure Definition?

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17 17 What is Data Hubbing?  In general, a hub is the central part of a wheel where the spokes come together. The term is familiar to frequent fliers who travel through airport "hubs" to make connecting flights from one point to another  In data communications, a hub is a place of convergence where data arrives from one or more directions and is forwarded out in one or more other directions –

18 18 Data Hubbing at the National Level Cambodia – DFID Project Objectives  Improve coordination in the National Statistical System  Collate development data in one place/hub  Make access to national data easier  Reduce data request burden  Use of latest IT software and practices

19 19 Line MinistriesNational Statistical OfficeUnited Nations Line Ministry Database National Indicator Registry National Repository DB DevInfo Upload XLS Scripts Register files Post notification Publish SDMX-ML Download Mapping tool Project Dissemination Model

20 20 Data Hubbing at the International Level (1) The Joint External Debt Hub (JEDH) Jointly developed by  Bank for International Settlements (BIS)  International Monetary Fund (IMF)  Organization for Economic Cooperation and Development (OECD)  World Bank (WB)

21 21 JEDH Site before SDMX BIS IMF OECD World Bank WEBSITE (Various Formats) (3-month production cycle)

22 22 JEDH with SDMX BIS IMF OECD World Bank SDMX-ML (Debtor database) [Info about data is registered] SDMX “Agent” SDMX Registry Discover data and URLs Retrieves data from sites JEDH Site Data provided in real time to site SDMX-ML Loaded into JEDH DB

23 23 Data Hubbing at the International Level (2) UNdata Portal  Before, a researcher interested analyzing the effects of population, health and education on per capita income growth would need to visit:  UNSD website for population figures  WHO website for health indicators  UNESCO website for education indicators  UNSD/World Bank/IMF website for income data  Now all these indicators are available in one place through a single user interface

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26 26 Data Hubbing at the International Level (3) European Central Bank (ECB)  Push vs. pull plus a hybrid approach  Central Hub to which all member banks submit their SDMX data  The ECB then pulls the entire dataset from the Central Hub  SDMX-based visualizations

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28 28 Resources  UNSD - Handbook of Statistical Organization (3rd ed.)  UNECE - Making Data Meaningful (2 parts)  SDMX - Contacts United Nations Statistics Hotline - Jacob Assa, UNSD -


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