Architecture repository, SI & Software Asset Management (SAM) 

separated IT system smoothly


worldwide users

Weeks of agile iterative time

Background information

Alstom has established itself in France as the benchmark for urban, regional and mainline rail transport. Alstom is a pillar of the railway industry in France, a major partner of the agglomerations, the French regions, and operators such as SNCF and RATP. 

Until then, we had repositories scattered among the various branches of the group that gave a fragmented view of the information system.(…) We were looking for a simple, fast, agile and inexpensive development solution.That is the case.The result is an evolving tool, shared by all.Today, it is our best tool to delimit the merger of IT with General Electric and the separation of Alstom Transport.

Jean-Marc Jaillet

Global Enterprise Architect, DSI Alstom


The IT department of the Alstom group, and more particularly the IT Architecture and Urbanization Department, wanted to acquire a single global repository to manage its assets, which represent 50 datacenters, 4,000 applications, 10,000 servers, 90,000 users and over 100,000 licenses.In addition, this need for complete control of the IS was made a high priority in the context of General Electric’s acquisition of Alstom’s Energy division, since it was very quickly necessary to be able to “separate” the Transport IT from the Energy IT.


Constitute the single, centralized IS repository based on the IS repositories scattered among the group’s various divisions

Streamline IT costs (applications, infrastructure) and increase ITSM efficiency

Take advantage of this repository to address license management (SAM – Software Asset Management)

Implement a fast, cost-effective and scalable DevOps solution.

With Simplicité, we design a data model. We simply create objects that we connect to each other. For example, a server object is graphically linked to an environment, i.e. a production machine, pre-production machine, etc. The data model is drawn in the tool and it generates all the data entry HMIs for you. We thought the idea was excellent. The construction of the model is almost totally graphic and then the generation of the screens is automatic. On the rights management side, there is no development to be carried out if you wish.

Laurent Giraud

Enterprise Chief Architect, CIO Alstom

Simplicité Solution

Modeling the group IS and creating the repository in Simplicité

Full cloud architecture (private)

Development in agile mode by successive iterations

Interconnection with Big Data tool allowing to have a complete and extremely detailed view of the entire IS and its use (“parsing” of server logs)