NDLI: Self-adaptive management of Web processes

Content Provider	IEEE Xplore Digital Library
Author	Polese, M. Tretola, G. Zimeo, E.
Copyright Year	2010
Description	Author affiliation: Department of Engineering, University of Sannio, 82100 - Benevento, Italy (Polese, M.; Tretola, G.; Zimeo, E.)
Abstract	Nowadays, we are assisting to a paradigmatic shift for the development of web applications due to the pervasive distribution of their components among a lot of servers, which are dynamically interconnected by web links. As a consequence, the application logic is often defined by exploiting workflow languages since they are more suitable to address the complexity of these new running environments. Moreover, in many business environments, the behaviour of a large-scale distributed web application is significantly influenced by context events, whose handling could require run-time adaptations of the application logic to properly react to the changing conditions of the execution context. This paper addresses the need for adaptation in large-scale web applications by proposing a programming paradigm based on “autonomic workflows”, i.e. workflows that are able to self-change their structure in order to allow for the continuation of the execution towards the termination, even if unexpected anomalies occur during the execution. The proposed approach exploits semantic languages for service description, autonomic managers driven by policies specified using a dedicated language, and a knowledge base containing information collected during processes execution. Autonomic actions are performed using Event Condition Action (ECA) rules for assessing system and process conditions, and a set of operations that allow for dynamic adaptation of the running processes. Furthermore, the correctness of workflow adaptation is checked before the modifications are performed, by using both syntactical and semantic constraints.
Starting Page	33
Ending Page	42
File Size	1074174
Page Count	10
File Format	PDF
ISBN	9781424486380
ISSN	15504441
e-ISBN	9781424486373
DOI	10.1109/WSE.2010.5623573
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-17
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Concrete Monitoring Semantics Humans Business Context Planning Web Processes Self-management Autonomic Workflow Adaptation
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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