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Exanda A Flexible On-Line Tabulation System Using DDI 3

Exanda A Flexible On-Line Tabulation System Using DDI 3. Overview From User Perspective I. Tables and charts in a web browser Up to three variables Multiple output formats A Bookmark can be set for each result Multiple languages for content and user interface

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Exanda A Flexible On-Line Tabulation System Using DDI 3

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  1. ExandaA Flexible On-Line Tabulation SystemUsing DDI 3

  2. Overview From User Perspective I • Tables and charts in a web browser • Up to three variables • Multiple output formats • A Bookmark can be set for each result • Multiple languages for content and user interface • Web pages confirm to common rules of accessibility Still in the works Exanda

  3. Overview From User Perspective II • Various output formats • Tables with frequencies, common percentages • Grouped and stacked column charts • PDF report for printing with all tables and charts from above • For further processing • DDI 3 nCube • Excel spreadsheet • Flash client for explorative approach • Quick change of dimensions • Focus on subgroups Still in the works Exanda

  4. Demonstation with a Survey on Institutions of Vocational Education and Training • Demo • DDI nCube Exanda

  5. Technical Overview RDBMS (i.e. Postgresql) with JDBC Protocol data storage data selection/aggregation XML Database (i.e. eXist) with XML:DB Protocol document storage metadata selection Java Application Server (i.e. Tomcat) Cocoon XML framework Transformation Protected Network Apache Web Server access control, encryption, compression, caching Web Browser Exanda

  6. Cocoon XML framework / Transformation Data Metadata nCube Internationalization o n t h e f l y FO Fins Gnumeric SVG Serialization FOP Fins POI-HSSF Copy of DDI nCube for Exploration (Flash) Table (HTML) Chart (PNG) Tables/Charts (PDF) Spreadsheet (Excel) Exanda

  7. Technical features • Study update possible by client from remote site • Sites for multiple institutions can be hosted at one installation • Scalability by distribution of servers on several computers • A portal can be built for multiple distributed Exanda sites with HTTP/HTTPS. Exanda

  8. Configuration / Availability • Flexible configuration • Disclosure control for small cell counts • Template-driven output formats • Look and feel for multiple sites • Open source under a GNU license • Available in summer 2009 Exanda

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