NDLI: The Adapta Framework for Building Self-Adaptive Distributed Applications

Content Provider	IEEE Xplore Digital Library
Author	Sallem, M.A.S. da Silva e. Silva, F.J.
Copyright Year	2007
Description	Author affiliation: Univ. Fed. do Maranhao, Sao Luis (Sallem, M.A.S.)
Abstract	Modern computing environments are characterized by a high degree of dynamism that, along with the heterogeneity of computational devices and communication infrastructure, demand the development of a new range of applications that must be able to self-adapt dynamically and transparently according to changes in its execution environment. On a computational Grid, for instance, it is common to notice a high variation on resource availability, node instability, variations on load distribution, and heterogeneity of computational devices and network technology. The Adapta framework is a reflective middleware that provides the means to develop self-adaptive component-based distributed applications, separating the business code from the one responsible for adaptation. Adapta also provides a runtime execution environment that monitors computational resources and notifies application components about the occurrence of important events that should trigger reconfiguration actions. Adapta provides a XML based reconfiguration language that defines how the application must adapt in response to environmental changes. Statements of the reconfiguration language can also be applied at runtime, which allows to dynamically change the reconfiguration mechanism itself. This paper describes Adapta architecture, implementation, and evaluation through a concrete case study, where a grid infrastructure is augmented for incorporating autonomic mechanisms towards a self-healing and self-optimization infrastructure.
Starting Page	46
Ending Page	46
File Size	152563
Page Count	1
File Format	PDF
ISBN	0769528597
DOI	10.1109/CONIELECOMP.2007.103
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-19
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Availability Runtime environment Humans XML Context awareness Computer architecture Grid computing Computer networks Distributed computing Middleware
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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