A career in vibration analysis cannot be improvised. It takes a whole entourage to train a good analyst. Interest in vibration analysis begins early, with the influence of a teacher, the expertise of a consultant who came to diagnose an old compressor or a colleague who is himself a reliability specialist. Then comes the CAT I training and certification, and CAT II, ​​a few years later. These trainings allow the analyst to understand the basics of the job; but this is not enough. The reliability specialist is regularly confronted with new problems, with new machines, which often behave strangely. To overcome this, the analyst will have to pursue training of all kinds throughout his career: lubrication, thermography, etc. He will also have to surround himself with mentors, more experienced analysts who will help him through his many diagnoses. The CMVA is one of many tools that help analysts make new contacts, learn and gain experience. Being an analyst is not only technical, it is also having the qualities of a diplomat! When it comes to stopping a plant following the diagnosis of a serious problem with an engine bearing, it is not always easy. It takes tact and a lot of credibility. This work also requires high availability: the machines don’t always break down at 9 a.m. on Monday morning. In summary, this work is not routine and almost requires a vocation!