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The new economic and social framework in which the business of XXI'th century run , globalization and internationalization of business, changing consumer optics wich become more interested in quality and organic matters incorporated, have developed new priorities for managing a company. Achieving "excellence" in business is the way of survival and development for the entities, in a competitive economy. One of the ways to achieve the excellence is the performance, currently are increasingly talking about overall performance resulting in performances obtained on three pillars: economic, social and environmental. In order to maximize overall performance of the company, investigating various aspects of economic, social and environmental approach is a very necessary step to any manager. In this paper we propose drawing up a comprehensive diagnostic system of a company, developed on the three pillars of sustainable development economy (economic, social and environmental). The model we developed is designed to provide synthetically, efficiently and quickly, the standing of a company in a given competitive environment [ABSTRACT FROM AUTHOR]

Sociologists attempt to compare personal networks in order to identify explanatory factors that mayindicatedifferences betweenthem, aboveand beyond individual life histories. However, the usual indicators distinguish a single structural characteristic. In this article we attempt to find a more satisfactory way of explaining the structure of personal networks. We propose an iterative deconstruction of personal networks focused on betweenness centrality which is recalculated by an algorithm at each stage of the process. When applied to a sample of 287 cases gathered by direct interviews, it allows us to establish the betweennesses that are otherwise concealed by higher values, to determine the intermediaries at each stage, to record their exit rank, to characterise all the alters by several criteria and, finally, to take into consideration the number of stages required to deconstruct the network, thereby creating a new indicator of network stratification. These results are coherent with what we know about the evolutions of personal network structures and social roles along the life cycle. In a way, they reflect the imprints that time and life events have left on Ego's network. [ABSTRACT FROM AUTHOR]