Current operating feedback Systems in industry show some limits as, in numerous industrial companies, the numbers of events do not decrease anymore and as similar events seem to recur. Our assumption is that weaknesses corne from analysis methodology used. After a description of analysis methodology history, we focus on interest of applying an organisational analysis of events, familiar to scholars but not yet in industry, and we describe its main characteristics. Then we highlight roles of analysts who are not neutral in using event analysis method, assuming that these roles could be a block to progress of event analyses.