Abstract
Building self-adaptive applications is a complex and challenging task. Developers must consider several issues in addition to the implementation of the application-specific functionalities. These issues include the selection of which environment elements must be monitored for detecting when adaptations should take place, how to perform the monitoring, which software adaptations should be carried out, and when should they take place.
Our work aims at reducing the complexity of building adaptive distributed applications. To achieve this, we developed an object-oriented framework that provides a set of integrated tools for monitoring resource usage and component interactions, detecting composite events, and reconfiguring distributed applications.
This paper describes the framework model and how it was used to incorporate adaptive mechanisms to a distributed information service for mobile users. It also presents several results obtained through the execution of a set of simulated scenarios. The results indicate that, besides detecting resource availability fluctuations, it is also important to monitor the interactions between application components, looking for patterns that indicate the necessity to perform dynamic adaptation. We drive conclusions about the applicability of using the framework for the design and implementation of adaptive distributed applications.
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da Silva e Silva, F.J., Endler, M., Kon, F. (2003). Developing Adaptive Distributed Applications: A Framework Overview and Experimental Results. In: Meersman, R., Tari, Z., Schmidt, D.C. (eds) On The Move to Meaningful Internet Systems 2003: CoopIS, DOA, and ODBASE. OTM 2003. Lecture Notes in Computer Science, vol 2888. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39964-3_81
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DOI: https://doi.org/10.1007/978-3-540-39964-3_81
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