Case study · Architecture & culture
A common platform for nine departmental sites
The Regional Union of CAUE d’Île-de-France wanted to replace a Drupal platform that had become slow and limited to four sites with a base capable of hosting the nine sites in the region.

The documented context
Share content without degrading administration
The existing Drupal platform allowed several CAUEs to share and modify content, a primer and an agenda. However, the duplication of content and its media generated a significant volume of recordings.
Back-office updates could take several minutes. This constraint prevented the platform from hosting the eight sites initially planned: only four were present there at the time.
- Quickly administer all sites
- Host nine sites on the same platform
- Have a mobile version
- Maintain a graphic identity specific to each site
PartITech Intervention
Technical design and production management
PartITech worked from the client's functional specifications and graphic elements provided by its design agency.
Technical design
Definition of the new platform in collaboration with the client.
Production Team
Implementation and supervision of a technical project manager, developers, HTML integrators and testers.
Acceptance testing
Supervision of the functional and technical validation of the platform.
Put into production
Support for deployment, then support for maintenance, developments, hosting and outsourcing.
The solution achieved
Symfony for tailor-made, Sonata for content management
A unique multisite structure
A common responsive structure reduces development work while leaving each site with its own menu and graphic charter.
Latency-free administration
The design allows the nine sites to be administered simultaneously without the wait times observed on the old platform.
Shared editorial functions
Sonata bricks provide the necessary content management functions in the Symfony application.
An open source base
Symfony and Sonata were selected to perform the expected functions without software license fees.
Documented results
Nine sites united on the new platform
The report kept in the customer case shows the migration of all CAUEs in the region in a few weeks, better visibility on mobile and optimized referencing.
- Administration of the nine sites on a common base
- Graphic identity and menu specific to each site
- Regional migration completed in a few weeks
- Maintenance, developments, hosting and outsourcing entrusted to PartITech
Multisite architecture
Study your own multisite context
We can audit the content, sharing rules and operating constraints before proposing an architecture.