##  [City of Nanterre](/en/content/city-nanterre) 

 **Nanterre** is a [French commune](https://fr.wikipedia.org/wiki/Commune_(France)) in the [Hauts-de-Seine](https://fr.wikipedia.org/wiki/Hauts-de-Seine) [department](https://fr.wikipedia.org/wiki/D%C3%A9partement_fran%C3%A7ais), of which it is the prefecture, in the [Île-de-France](https://fr.wikipedia.org/wiki/%C3%8Ele-de-France) [region](https://fr.wikipedia.org/wiki/R%C3%A9gion_fran%C3%A7aise).

In 2020, the municipality had a population of 95,782, making it the second most populous in the department after [Boulogne-Billancourt](https://fr.wikipedia.org/wiki/Boulogne-Billancourt).

The City of Nanterre chose **GoFAST to replace Teams at short notice**. This meant that we had to quickly develop tools for migrating both Teams and stored documents. But above all, it enabled us to see how GoFAST enabled a much more structured organisation than Teams.



 [![City of Nanterre and GoFAST](/sites/default/files/styles/large/public/Template%20Image%20%283%29_0.png?itok=jBNVoTue "City of Nanterre and GoFAST")](/sites/default/files/Template%20Image%20%283%29_0.png) 

 

 

 

 

#### City of Nanterre: A successful transition to GoFAST

The city of Nanterre, wishing to free itself from its **dependence on Microsoft tools**, called on GoFAST for a gradual transition. With the imminent end of its contract with Microsoft, the city needed to quickly find an alternative **capable of replacing collaboration tools such as Microsoft Teams, SharePoint, the file server, and MS-Office.** The objective was to guarantee an **open-source, OnPremise,** and efficient solution, while minimizing disruption to agents.





#### What were the problems to be solved?

**The main issues identified by the city of Nanterre included :**

- **Replacing Microsoft Teams** with a high-performance collaboration tool featuring web conferencing and chat
- **Migrating Share Windows file server** and MS-Office suite to an Open Source solution
- Ensuring **data sovereignty** with a dedicated, secure OnPremise platform.
- Find a service **provider experienced** in migration from Microsoft tools.
- **End of Microsoft contract imminent**: With the Microsoft contract coming to an end, the city had to move quickly to a new collaborative solution to avoid any interruption in service.

#### Project scope, by phase

**Department responsible for the project:** Infrastructure and Digital Services Department

**Phase 1 Installation of GoFAST Community:** Even before the start of a project, the city of Nanterre tested the free, open-source version of GoFAST in June 2022, enabling its functionality to be evaluated in real-life conditions.

**Phase 2 Roll-out to the whole of Nanterre:** In January 2024, GoFAST Enterprise was deployed on a large scale, covering over 1,000 employees, with the first stage replacing Microsoft Teams and SharePoint.



#### Technical scope :

- **Dedicated platform, hosted OnPremise** on the city's infrastructure
- Maintenance and updates carried out remotely, by **CEO-Vision** via secure remote administration

#### Review and follow-up to GoFAST adoption

In **less than a month**, all agents involved in the project fully adopted GoFAST, with no major disruptions.

The success of the migration is reflected in the absence of any post-migration support requests, demonstrating a **smooth transition** and rapid acceptance of the new solution.

This project proves that it is possible to **move away** from dependence on **Microsoft** while improving internal collaboration and document management.











- [Customers-Users](/en/taxonomy/term/108)
- [Public Sector](/en/taxonomy/term/118)
 


 ![City of Nanterre and GoFAST](/sites/default/files/styles/mt_company_logo/public/Template%20Image%20%283%29_1.png?itok=Epr74AxP "City of Nanterre and GoFAST")

**Nanterre** is a [French commune](https://fr.wikipedia.org/wiki/Commune_(France)) in the [Hauts-de-Seine](https://fr.wikipedia.org/wiki/Hauts-de-Seine) [department](https://fr.wikipedia.org/wiki/D%C3%A9partement_fran%C3%A7ais), of which it is the prefecture, in the [Île-de-France](https://fr.wikipedia.org/wiki/%C3%8Ele-de-France) [region](https://fr.wikipedia.org/wiki/R%C3%A9gion_fran%C3%A7aise).

In 2020, the municipality had a population of 95,782, making it the second most populous in the department after [Boulogne-Billancourt](https://fr.wikipedia.org/wiki/Boulogne-Billancourt).

The City of Nanterre chose **GoFAST to replace Teams at short notice**. This meant that we had to quickly develop tools for migrating both Teams and stored documents. But above all, it enabled us to see how GoFAST enabled a much more structured organisation than Teams.