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Dynamicity is an important requirement for critical software adaptation where a stop can be dangerous (e.g. for humans or environment) or costly (e.g. power plants or production lines). Adaptation at run-time is also required in context-aware applications where execution conditions often change. In this paper, we introduce MaD-cAr, an abstract model of(More)
In the context of meta-programming and reflective languages, classes are treated as full fledged objects which are instances of other classes named metaclasses. Meta-classes have proved to be useful for defining new class properties. Examples of such properties are lazy memory allocation, multiple inheritance, having a single instance. .. A class with some(More)
Adaptive Object Models are a sophisticated way of building object-oriented systems that let non-programmers customize the behavior of the system and that are most useful for businesses that are rapidly changing. Although systems based on an Adaptive Object Model are often much smaller than competitors, they can be difficult to build and to learn. We believe(More)
Exploration of an unknown environment is one of the major applications of Multi-Robot Systems. Many works have proposed multi-robot coordination algorithms to accomplish exploration missions based on multi-agent techniques. Some of these works focus on multi-robot exploration under communication constraints. In this paper, we propose an original way to(More)
Maintaining the network connectivity in mobile Multi-Robot Systems (MRSs) is a key issue in many robotic applications. In our view, the solution to this problem consists of two main steps: (i) making robots aware of the network connectivity; and (ii), making use of this knowledge to plan robots tasks without compromising connectivity. In this paper, we view(More)
In this article, we suggest using the MADCAR model to facilitate the design of component-based agents. MADCAR is an abstract model for building engines that dynamically and automatically (reassemble e component-based applications. We use such an engine to define a model of agent able to be reassembled following contextual changes or the designer's requests.(More)
A proxy object is a surrogate or placeholder that controls access to another target object. Proxy objects are a widely used solution for different scenarios such as remote method invocation, future objects, behavioral reflection, object databases, inter-languages communications and bindings, access control, lazy or parallel evaluation, security, among(More)
Dans cet article, nous introduisons MADCAR, un modèle de moteurs dédiés à la construction et à la reconfiguration dynamique et automatique d'ap-plications à base de composants. Dans MADCAR, la description d'une application regroupe la définition des configurations valides et les règles de transfert de l'état de l'application lors des adaptations. Cette(More)