Date post: | 30-Dec-2015 |
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GOOD PRACTICES FOR DATA DISSEMINATION
Juraj RiecanDirector, UN-ESCWA Statistics Division
Overview of dissemination practices
Traditional databases
Front-ending
Process-oriented architecture
From recordsets to data cubes
Current dissemination practices
Spreadsheets
Static file formats
National databases
• Only a snapshot• Data not downloadable• Manual updates
• Fully controlled presentation• Combine data, text, charts• Quick, easy, cheap
Static files
√
X• Key indicators• Highlights>
• Users have to download all• Manual updates
• Easy format for data analysis• Downloadable, Customizable
Spreadsheets
√
X• Data files for further analysis>
• Important implementation costs• IT infrastructure• System maintenance
• Customized queries• Flexible downloads• Easy updates
National databases
√
X
• General data dissemination>
Traditional databases
Database 1
Database 2
Database 3
Front-ending
Database 1
Database 2
Database 3
Process oriented architecture
Database 1
Database 2
Database 3
Production Database
DisseminationDatabase
DisseminationDatabase
PC-Axis
DevInfo
Beyond 20/20
StatbankSuperWEB
New Chronos
OECD.Stat
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
Exporting country
Importing country
Flexibility
Standard Query Language (SQL)
Generic database tools
Data Cube (Hypercube)
Year
2001 2002 2003 2004
0-15
16-6
465
+
Country A
Country B
Country C
Co
un
try
Age
Data Cube (Hypercube)
Most common approach
Flexible
Expandable
Combining multiple classification
Easy cross-tabulation
√√√√√
Conclusion – Summary
Process oriented Architecture
Hypercube data model
Dissemination databases