1. Joachim Wackerow joachim.wackerow@gesis.org Exanda A Flexible On-Line Tabulation System Using 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 IASSIST 2009-05-272Exanda Still in the works

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 IASSIST 2009-05-273Exanda Still in the works

4. Demonstation with a Survey on Institutions of Vocational Education and Training  Demo Demo  DDI nCube DDI nCube IASSIST 2009-05-274Exanda

5. IASSIST 2009-05-275Exanda Apache Web Server access control, encryption, compression, caching Java Application Server (i.e. Tomcat) Cocoon XML framework Transformation RDBMS (i.e. Postgresql) with JDBC Protocol data storage data selection/aggregation Web Browser Technical Overview Protected Network XML Database (i.e. eXist) with XML:DB Protocol document storage metadata selection

6. Cocoon XML framework / Transformation IASSIST 2009-05-276Exanda Table (HTML)Chart (PNG) Tables/Charts (PDF) Copy of DDI nCube for Exploration (Flash) Spreadsheet (Excel) GnumericFOFins Internationalization SVG Serialization POI-HSSFFinsFOP nCube o n t h e f l y MetadataData

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. IASSIST 2009-05-277Exanda

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 IASSIST 2009-05-278Exanda