NDLI: Reasoning on Non-Functional Requirements for Integrated Services

Content Provider	IEEE Xplore Digital Library
Author	Ghezzi, C. Tamburrelli, G.
Copyright Year	2009
Abstract	We focus on non-functional requirements for applications offered by service integrators; i.e., software that delivers service by composing services, independently developed, managed, and evolved by other service providers. In particular, we focus on requirements expressed in a probabilistic manner, such as reliability or performance. We illustrate a unified approach—a method and its support tools—which facilitates reasoning about requirements satisfaction as the system evolves dynamically. The approach relies on run-time monitoring and uses the data collected by the probes to detect if the behavior of the open environment in which the application is situated, such as usage profile or the external services currently bound to the application, deviates from the initially stated assumptions and whether this can lead to a failure of the application. This is achieved by keeping a model of the application alive at run time, automatically updating its parameters to re¿ect changes in the external world, and using the model’s predictive capabilities to anticipate future failures, thus enabling suitable recovery plans.
Starting Page	69
Ending Page	78
File Size	565919
Page Count	10
File Format	PDF
ISBN	9780769537610
ISSN	1090705X
DOI	10.1109/RE.2009.34
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intserv networks Application software Contracts Software development management Predictive models Quality of service Conference management Engineering management Runtime environment Condition monitoring Discrete Time Markov Chains Non-Functional Requirements Integrated Services
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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