Enterprise roles define the duties and responsibilities of the individuals which are assigned to them. This paper introduces a framework for the management of large distributed systems which makes use of the concepts developed in role theory. Our concept of a role groups the specifications of management policies which define the rights and duties corresponding to that role. Individuals may then...

This paper deals with the derivation of macroscopic tissue models from the underlying description delivered by a class of equations modeling binary mixtures of multi-cellular systems by methods of the kinetic theory for active particles. Cellular interactions generate both modification of biological functions and proliferative-destructive events. The analysis refers to a suitable hyperbolic app...

WiFi offloading has emerged as a key component of cellular operator strategy to meet the data needs of rich, mobile devices. As such, mobile devices tend to aggressively seek out WiFi in order to provide improved user Quality of Experience (QoE) and cellular capacity relief. For home and work environments, aggressive WiFi scans can significantly improve the speed on which mobile nodes join the ...

Many biological phenomena are inherently multiscale, i.e. they are characterised by interactions involving different scales at the same time. This is the case of bone remodelling, where macroscopic behaviour (at organ and tissue scale) and microstructure (at cell scale) strongly influence each other. Consequently, several approaches have been defined to model such a process at different spatial...

We examine how experiential learning affects organizational change and its consequences on firm mortality. We develop hypotheses about the interactions of experiences with a specific type of organizational change on the one hand, and environmental stability, organizational size, and organizational niche width on the other hand. Our findings draw from analysis of the U.S. automobile industry bet...

The role of humans in the software development process must be studied in the context of their organizational con guration. The organizational structure within which the process executes has a profound effect on its outcome. The communication and interaction problems associated with human involvement in development cannot be addressed by process improvement alone. The solution must include orga...

We investigate the effects of organizational culture and personal values on performance under individual and team contest incentives. We develop a model of regard for others and in-group favoritism that predicts interaction effects between organizational values and personal values in contest games. These predictions are tested in a computerized lab experiment with exogenous control of both orga...

This paper is concerned with the construction of dialogues for speech output with large text, in a Web browser for elderly visually impaired people. Studies made in our research group, show that elderly visually impaired users experience great difficulty in getting going on the Internet when they have no previous experience in computing [6]. Age Associated Memory Impairment (AAMI) is a major pr...

One of the organisational concepts which is currently receiving considerable attention is that of the 'virtual organisation' (Dividow and Malone, 1992) and associated notions such as 'virtual teamwork'. Although admittedly replete with conceptual confusions and clearly accompanied by considerable 'hype' such organisational forms, it is claimed, address major transformations in the social, econo...