The integration of computer systems (or SI) allowing ergonomic access to relevant data has become a necessity for the management of a company.
The difficulty of a SI is to bring together many non-heterogeneous elements which often have very few common standards (for example in respect of the programming language, the format or even the operating system).
But not only compatibility issues, but also data volume and privacy and security requirements make the issue of SI a challenge.

The implementation of a SI project is therefore anything but simple and involves a whole series of imponderables and technical peculiarities. It is therefore essential to define beforehand all the aspects and their strategic importance.