1. Statistiques locales A new on line database to meet user needs :
giving free and easy access
to statistics on local areas
Available on line
beginning of 2006
Ces outils vous donnent un accès rapide et illustré aux chiffres fondamentaux de votre territoire.

2. Statistiques locales Any type of local area :
administrative areas such as « communes » (municipalities), « départements », « régions »
zones created for statistical or geographical analyses as « zones urbaines », « zones d’emploi »
specific areas tailored by users

3. Statistiques locales
A wide range of sources and themes :
sources : censuses, surveys, administrative forms and registers
themes : demography, dwellings, employment, incomes, educational attainment, enterprises…

4. Statistiques locales Three formats of information : key datas
detailed datas
thematical interactive maps

6. Statistiques locales Key datas (1)
they are presented as short reports displaying :
the main indicators of an area, gathered from several sources
charts
automatic commentaries (in some cases)
The soft used are Crystal Report and Crystal Enterprise

7. Statistiques locales Key datas (2) for each area are available :
a general report giving a statistical summing-up
reports by theme
a special report based on the new census results

9. Statistiques locales Detailed datas :
multi-dimensional tables : up to 6 dimensions
tools of navigation between the levels of aggregation, particularly the geographic levels
also powerful tools for personnalizing the display of the table, selecting the extracts and choosing the format of downloading
the interface is the Web Data Server of B20/20
Databases will be also downloadable as a whole (.ivt, .txt, .dbf)

11. Statistiques locales Interactive thematic maps : the user can :
set cartographic parameters by selecting : variables (represented by choropleth or symbolic analysis), thresholds…
choose the area to be mapped
zoom and move
display additional informations (layers of zonings…)
select a cell and display informations about it (name, stats…)
Interface software : Geoclip
Exemples : Population+Densité ; Typologie urbain-rural

14. Statistiques locales
This site is managed through an intranet application which permits easily to :
create, modify or suppress all the labels and texts of the interface
integrate new options and new products (reports, tables, maps) or suppress those judged obsolete
Example : Introducing a new item in the list of indicators available for mapping

17. Statistiques locales Feeding the web site:
all data management, for example updating, is realised in a datawarehouse opened only to internal users (on Insee’s Intranet)
the databases of the internet site are only extracts from this datawarehouse
this two servers architecture allows to make sure that the data on internet will be compatible with statistical secret
the centralisation of various sources in the datawarehouse and the harmonisation of data formats and documentation is a heavy and complex task
but they are indispensable to secure a regular and easy functioning of the internet site

18. Statistiques locales Main difficulties of the project (1) :
selection of the interfaces : a choice partially limited by budgetary constraint
interoperability of the three interfaces : achieved, but has required a delicate development of the site and complexifies its installation on internet
performances : the processing of many reports involves large sets of data belonging to many tables : hence the optimising of SQL queries and Oracle tables takes a lot of work

19. Statistiques locales Main difficulties (2)
handling with the statistical secret :
as noted about the architecture, the most detailed data, particularly all micro-data, are not extracted of the datawarehouse to be put on the site
reports : according to the size of the population, or of another indicator, formulas allow to display or not a report / a single table / a cell in a table (in fact two cells at least)
multi-dimensional tables : the interface allows to deny access to particular sets of cross-variables
maps : cells under a certain level of population, or of an other indicator, may display a symbol meaning « undisclosable »