Systèmes de gestion de ressources et aspects de disponibilité

tomates. L'avantage de cette approche formelle est double : d'une part,l'utilisateur garde la maitrise de l'impact semantique du tissage et, d'autre part, il peut utiliser de s outils de model- checking pour optimiser le tissage et verifier des proprietes de disponibilite . ABSTRACT. In this paper, we focus on availability properties and the prevention of denia l of services. We propose a domain-specific aspect language to preventthe denials of service caused by resource management. Our aspects specify availability policies by enfor cing time limits in the allocation of resources. In our language, an aspect can be seen a s a formal temporal property on execution traces. Programs and aspects are specified astimed automata and the weaving process as an automata product. The benefit of this formal app roach is two-fold: the user keeps the semantic impact of weaving under control and (s)he ca n use a model-checker to optimize the woven program and verify availability properties.