NDLI: PCOMs: A Component Model for Building Context-Dependent Applications

Content Provider	IEEE Xplore Digital Library
Author	Magableh, B. Barrett, S.
Copyright Year	2009
Abstract	In this paper, we present a model to dynamically compose adaptable context-dependent applications using context conditions. The contributions of this work are: designing components as compositions of behaviour; embedding decision points in the component at development time to determine component behaviour; supporting reconfiguration of decision policies at runtime to adapt behaviours. The approach is a component-based one that modifies the application architecture by subdividing components into subsystems of static and dynamic elements. We map each context condition to a composable template architectural configuration. Each context condition acts to select behavioural patterns, which combine to form application architectures. Patterns describe system adaptation in term of adjustments of sub-elements of component behaviour. Our approach is dependent on the identification of sub-elements on the component suitable for localising context dependent changes such that alternatives versions tailored to specific context to be woven in the application at runtime as context varies. We illustrate this approach with a simple case study.
Starting Page	44
Ending Page	48
File Size	474275
Page Count	5
File Format	PDF
ISBN	9781424451661
DOI	10.1109/ComputationWorld.2009.92
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-15
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Context-aware services Context awareness Educational institutions Application software Middleware Statistics Computer science Context-awareness middleware Runtime Context- dependent adaptation Components model Assembly Context modeling
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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