Enterprise modelling and performance – Part 1: Implementation of performance indicators

Performance is an issue today in production management. Thus, every decision-maker within the production management system must make his own decisions in relation to local objectives which must be defined and valued consistently within the global objectives of the system. Based on this assumption, every decision-maker must have performance indicators available in order to evaluate his own decisions in relation to the objectives that he must meet and to react according to his action means (decision variables). The first part of this paper aims to present the GRAI approach, an enterprise modelling method within which the notion of performance indicators appears. More precisely, two kinds of performances are considered. The first one is operation-oriented and related to the mastery of production processes. The second is structure-oriented and supports the management of evolution. The second part of the paper deals with the presentation of ECOGRAI, a method dedicated to design and to implementing those performance indicators arising from the operation-oriented approach. The paper will present the main concepts of this method, the techniques used for management system modelling and design and for the definition of objectives and the decision variables of each decision-maker. It will also present the structured approach supporting the definition and the implementation of the performance indicator system. Throughout the exposition of ECOGRAI, a case study concerning the maintenance function will illustrate the description.