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Attentiveness: Reactivity at Scale

Clients of reactive systems often change their priorities. For example, a human user of an email viewer may attempt to display a message while a large attachment is downloading. To the user, an email viewer that delayed display of the message would exhibit a failure similar to priority inversion in real-time systems.
We propose a new quality attribute, attentiveness, that provides a unified way to model the forms of redirection offered by application-level reactive systems to accommodate the changing priorities of their clients, which may be either humans or systems components. Modeling attentiveness as a quality attribute provides system designers with a single conceptual framework for policy and architectural decisions to address trade-offs among criteria such as responsiveness, overall performance, behavioral predictability, and state consistency.

Identiferoai:union.ndltd.org:cmu.edu/oai:repository.cmu.edu:dissertations-1017
Date01 December 2010
CreatorsHartman, Gregory S.
PublisherResearch Showcase @ CMU
Source SetsCarnegie Mellon University
Detected LanguageEnglish
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Formatapplication/pdf
SourceDissertations

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