It is a management tool based on five activity indicators (including one quantitative indicator – production, which covers the objectives assigned each year to administrative units and staff), and four qualitative indicators (quality of work, pro-active behaviour, diligence and a model that allows a qualitative assessment of performance on each objective); weighting coefficients are associated with each objective to determine their relative importance, with the whole combining to give an index of performance on a 100-point scale). This performance combines quantitative and qualitative aspects. Expressing objectives in terms of indicators makes them intelligible, comprehensible, and measurable. Planning occurs before the start of each month. Those in hierarchically responsible positions are able to correct the limits noted by their colleagues by simply adjusting the indicator coefficients concerned, increasing them where performance is poor and reducing them where it is relatively high. The control system uses dashboard systems.