Also known as CAE (Computer-Aided Engineering), the aim of digital simulation is to validate a complex phase during the design of a product. It therefore guarantees compliance with the requirements expressed initially by the customer in the specification. To do this, engineers with specific expertise make use of dedicated software and certified calculation codes, in order to model the subject of their study.

This allows the dimensioning of a product to be optimised, its compliance to be verified prior to the approval phase or even for the weight of structures to be reduced by improving the use of each of the materials, etc. Consequently, it is an excellent way of avoiding the need for physical tests and, therefore, creation of the relevant prototypes, which is often a lengthy and expensive task.