The grid: blueprint for a new computing infrastructure
The grid: blueprint for a new computing infrastructure
A Classification and Comparison Framework for Software Architecture Description Languages
IEEE Transactions on Software Engineering
Denotational Semantics for an Active Rule Execution Model
RIDS '95 Proceedings of the Second International Workshop on Rules in Database Systems
Feature interaction in policies
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Directions in feature interaction research
Proceedings of the 11th workshop on ACM SIGOPS European workshop
Managing dynamic reconfiguration in component-based systems
EWSA'05 Proceedings of the 2nd European conference on Software Architecture
Weaving executability into object-oriented meta-languages
MoDELS'05 Proceedings of the 8th international conference on Model Driven Engineering Languages and Systems
Incremental model synchronization for efficient run-time monitoring
MODELS'09 Proceedings of the 2009 international conference on Models in Software Engineering
Autonomic pervasive applications driven by abstract specifications
Proceedings of the 2012 international workshop on Self-aware internet of things
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Manual administration of complex distributed applications is almost impossible to achieve. On the one side, work in autonomic computing focuses on systems that maintain themselves, driven by high-level policies. Such a self-administration relies on the concept of a control loop. The autonomic computing control loop involves an abstract representation of the system to analyze the situation and to adapt it properly. On the other side, models are currently used to ease design of complex distributed systems. Nevertheless, at runtime, models remain useless, because they are decoupled from the running system, which dynamically evolves. Our proposal, named Dacar, introduces models in the control loop. Using adequate models, it is possible to design and execute both the distributed systems and their autonomic policies. The metamodel suggested in this paper mixes both OMG Deployment and Configuration (OMG D&C) specification and the Event-Condition-Action (ECA) metamodels. This paper addresses the different concerns involved in the control loop and focuses on the metamodel concepts that are required to express entities of the control loop. This paper also gives an overview of our Dacar prototype and illustrates it on a ubiquitous application case study.