7. Conclusion

The methodology presented in this article demonstrates the application of a "global" approach to the problem of setting priorities for many maintenance and rehabilitation projects. This type of problem often includes multiple constraints and multiple criteria for decision-making, which change according to the objective of the organization carrying out the plant maintenance. The approach presented is generic, in the sense that it can be adapted to various situations depending on the specific conditions and constraints.

The elements needed to successfully define this type of problem are as follows:

1) precise formulation of the constraints required by the end-user;

2) systematic assessment of the condition of the existing installation;

3) precise evaluation of maintenance and operating costs;...