International audienceOverlong waiting time in emergency services is an important matter which has negative influence on healthcare quality. This problem can be resolved by improving emergency services using modelling and discrete event simulation of system process. In this article, a simulation model is designed to represent the patient visit process by using, respectively, IDS Scheer ARIS™ and Rockwell Arena™. This simulation model can help us to identify process bottlenecks, and adjust resources allocation or staff dimensioning without disturbing the actual system. For the purpose of reducing waiting time in emergency departments (ED), doctor's efficiency improvement and quick pass process are proposed and experimented as two new solutions. In addition to simulation results, we summarise some advantages and shortcomings observed during our development work for future use of ARIS and Arena. This work was based on the ED at Saint Joseph and Saint Luc Hospital in Lyon, France

International audiencePurpose Servitization of manufacturing is characterized by very complex decision processes within strongly unstable and uncertain decision contexts. Decision-makers are face situations of lack of internal and external information. This paper intends to develop a decision aid approach to support the management of servitization decision-making processes. Design/methodology/approach The scientific orientation of this research consists in working at improving the efficiency of the servitization decision-making process, by identifying factors of non-reliability, in order to propose remediation actions for the whole process. Improving the final decisions taken by the managers is considered as a consequence of the improvement of the decision-making process reliability. The method, based on modeling and evaluation, requires the specification of a decision process model for servitization, used as a basis to assess decision process reliability and diagnose the enterprise’s servitization decision system. Improving the final decisions made by the managers is considered as a consequence of the improvement of the decision-making process reliability. Findings Key added values: (i) to formalize a servitization decision-making reference model, (ii) to specify a reliability assessment applied to the decision system and (iii) to define a decision pocess reliability diagnosis procedure for servitization, illustrated in a case study. Research limitations/implications A direct perspective is to complete the focus on procedural reliability, by taking into consideration the subjective rationality of decision-makers in the reliability assessment procedure. Additionally, this reliability assessment method and diagnosis could become the basis of a larger risk management approach for servitization. Practical implications The diagnosis procedure proposed in the paper is dedicated to generating practical results for enterprise decision-makers, consisting in recommendations for decision process improvements, in the context of servitization. The approach is illustrated through an industrial SME case study. The practical implications are highly contextualized. Originality/value The key originality of this research is to tackle servitization complexity with a decision system modeling and diagnosis orientation, including the formalization of the notion of ‘decision process reliability’, and the specification and implementation of a quantitative assessment procedure

International audienceCompanies are now economically bound to collaborate with other enterprises, forming horizontal networks that are generally goal-based and are of a limited duration. This article specifically addresses networks of industrial small and medium enterprises (SMEs). Thanks to a five-years study, some of the main characteristics of such networks will be clarified. One upshot from the experiment was that such networks are rarely guided by formal and deliberate strategies, and that their evolutions and mutations cannot be forecast with the usual strategic planning tools. This paper presents a formal framework to analysis and design the trajectories of networks of firms, with the aim of facilitating the strategic guidance of the network. First, approaches dealing with strategic evolution are presented. Next, organizational trajectories are examined, based on the relative situation of activities and competencies between the companies inside the network. Then, a typology of SMEs networks is given and illustrated by industrial cases. Finally, a formal frame based on the typology and on the degree of achievement of the network (as expressed by a six-levels Maslow's pyramid) is presented, which allows location and guidance of SMEs networks according to their needs. As an illustration a real network trajectory is also given

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International audienceLes systèmes hospitaliers sont en pleine restructuration, stimulée par la maîtrise de la démographie du personnel médical et soignant et par la modification du mode de tarification imposée par les tutelles. L'une des stratégies préconisées est le regroupement de moyens qui se matérialise dans le secteur chirurgical par la création de plateaux médicotechniques (PMT). Ce papier propose une démarche et un accompagnement du changement à l'aide d'outils de la modélisation d'entreprise pour la conception et le transfert vers une structure mutualisée ou pour l'analyse et le pilotage d'un PMT existant. Deux projets de restructuration illustrent ces propos : l'un dans la définition de l'organisation cible d'établissements en cours de regroupement, l'autre portant sur l'identification de dysfonctionnements et l'amélioration des performances par le pilotage.The hospital systems are on the top of a reorganisation trend, stimulated by the medical and nursing staff demography control and by the activity rating imposed by the government. One of the strategies recommended is to regroup facilities. In the surgical sector it leads to the creation of a single technical platform (TP). This paper proposes an approach of change management using enterprise modelling tools for design and transfer towards a mutualized structure or for analysis and control of an existing TP. Two reorganization projects illustrate this approach: one concerning organisation targets definition for hospitals on the way of regrouping, the other dealing with dysfunctions identification and performance improvement