2. The foundations

Basic data

Maintenance activities use information. Some of this information is generic, in the sense that it is reused many times, and forms the foundation on which the entire function is built. They also produce data that needs to be structured and organized, if possible in advance. We need to define "formats" to know where, and in what form, the memory of the installation and the company will be built up.

The standard defines maintenance as all the actions required to maintain or restore an asset in a state in which it can perform its required function. We therefore maintain both an asset and a function, or more precisely, we maintain a function by acting on...