1. Integration of spatial database and statistical data
Nordic Forum for Geo-statistics
Kongsvinger, Norway
Maija Leppänen
Statistics Finland

2. Contents About Production Model and a new data base structure
GIS in the new environment
Modelling GIS and statistical attribute data
Examples
Benefits and summary

3. Production model of ‘Census’ statistics
Downsizing of processes in IBM mainframe
modernising production of statistics
integrating digital map data, locations of statistical entities and attribute data together in the same environment
statistics are produced in the old and new environment and results are compared

4. Data Base Architecture of ‘Census’ data
Register
Data
GIS
Data Base
Others
Meta
Data
Electronically
collected data
Data Ware House
Production Data base
Superstar
User Interface,
SAS,SQL
User Interface,
SAS
SQL

5. Spatial database is a data base containing
digital map data and location data,
Also called: geodatabase or GIS database
Spatial database is a logical concept,
physically data is in more than one
SQL Server-database.
Geometry is administrated by ArcSDE-product

6. Spatial data production and use
Map data,
locations of statistical data
as spatial data types
Micro- and macro-data

7. Spatial Modelling of database
GMF : General Feature Model (Application Schema ISO )
GML : Geographic Markup Language (ISO 19136, OGC)
GMF:n XML-implementation
Finnish recommendations, work ongoing
ESRI’s Geodatabase

8. An example of ESRI geodatabase schema

9. Current Contents of the Geodatabase
In production:
Maintenance of buildings (as points)
Use of Municipal boundaries in different scales
Updating Sub-areas of municipalities
Using Grid nets of 1*1 km and 250*250 km together with aggregated grid data
Testing
Postal code areas
Localities
...

10. Common use of statistical entities and map data
Building_id
Co-ordinates
Sub-area code
Locality code
Municipality code
Geometry:Point
Digital map data
Point in polygon-
method

11. Producing grid data

12. Benefits of using spatial database
Commonly used database
Statistical attribute data in the same environment
Maintenance in one place
Processed will be simplified
Quality will be better
More possibilities
Administration of large data is better

13. => Summary Central spatial database is a
part of spatial infrastructure and is
one of the most important clue
in GIS-strategy of Statistic Finland
=>
Harmonised data sets to common use