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Transcript
GOOD PRACTICES FOR DATA DISSEMINATION Juraj Riecan Director, UN-ESCWA Statistics Division Overview of dissemination practices Traditional databases Front-ending Process-oriented architecture From recordsets to data cubes Current dissemination practices Static file formats Spreadsheets National databases Static files √ •Fully controlled presentation •Combine data, text, charts •Quick, easy, cheap X •Only a snapshot •Data not downloadable •Manual updates > •Key indicators •Highlights Spreadsheets √ •Easy format for data analysis •Downloadable, Customizable X •Users have to download all •Manual updates > •Data files for further analysis National databases √ •Customized queries •Flexible downloads •Easy updates X •Important implementation costs •IT infrastructure •System maintenance > •General data dissemination Traditional databases Database 3 Database 2 Database 1 Front-ending Database 3 Database 2 Database 1 Process oriented architecture Database 3 Database 2 Database 1 Production Database Dissemination Database Dissemination Database From recordsets to hypercubes Recordsets Relational databases Hypercubes Recordsets Evolution from paper records Sequential reading Record = data item & metadata Relational Databases Reporting country Trade Volume Flexibility Standard Query Language (SQL) Generic database tools Importing country Exporting country Data Cube (Hypercube) Country Country C Country B Country A 2001 2002 2003 2004 Year Data Cube (Hypercube) √ √ √ √ √ Most common approach Flexible Expandable Combining multiple classification Easy cross-tabulation Conclusion – Summary Process oriented Architecture Dissemination databases Hypercube data model THANK YOU [email protected]