Pebbles and Urns: A Tangible, Presence-Based Service Delivery Framework

dc.contributor.authorPlymale, William O.en
dc.contributor.committeechairMidkiff, Scott F.en
dc.contributor.committeememberTatar, Deborah Gailen
dc.contributor.committeememberSilva, Luiz A.en
dc.contributor.committeememberTront, Joseph G.en
dc.contributor.committeememberMartin, Thomas L.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2013-02-19T22:38:48Zen
dc.date.available2013-02-19T22:38:48Zen
dc.date.issued2013-01-11en
dc.description.abstractWireless and pervasive computing research continues to study ways the Internet of Things (IoT)<br />can make lives easier and more productive. Areas of interest include advances in new<br />architectures and frameworks that support large-scale IoT deployments beyond research<br />prototypes, simple and inexpensive human-to-device and device-to-device interfaces, and user<br />decision making support with opportunistic information services.<br /><br />This dissertation investigates the design and implementation of a general-purpose framework<br />upon which IoT and opportunistic computing (OC) systems can be built.<br /><br />The result of this work is Pebbles and Urns (P&U), a casually accessible system designed to<br />deliver information to a person that is pertinent and beneficial to them with respect to their<br />current activity, location and other contexts. P&U is a proximity-based information delivery<br />framework that leverages a simple, inexpensive tangible interface and context-rich, physicallysituated,<br />distributed information repositories. By its proposed use of enforced proximity, local<br />context, and location-specific services, P&U can support the situated interaction between user<br />and place.<br /><br />The P&U framework is based on a layered architecture consisting of an isolated physical<br />communication layer, a data repository supporting opportunistic service composition and<br />delivery, and a controller/interface providing user feedback. Serving as a potential IoT design<br />pattern, P&U application developers can use the framework API\'s and software tools to build<br />and deploy P&U systems.<br /><br />As validation of this work, P&U prototypes are constructed using the framework, API\'s and<br />software tools. The prototypes are based on use cases depicting a person engaged in the day-today<br />activities of attending class, going to the gym and grocery shopping. Performance<br />measurements are performed on the prototypes profiling core components of the framework.<br />Results indicate proper functioning of P&U tangible interfaces, communication connections,<br />service request and delivery, and internal framework operations.<br /><br />Contributions of this research include a general-purpose framework, a simple IoT interface and<br />an opportunistic engine.en
dc.description.degreePh. D.en
dc.format.mediumETDen
dc.identifier.othervt_gsexam:318en
dc.identifier.urihttp://hdl.handle.net/10919/19223en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectpervasive computingen
dc.subjectopportunisticen
dc.subjectsituateden
dc.titlePebbles and Urns: A Tangible, Presence-Based Service Delivery Frameworken
dc.typeDissertationen
thesis.degree.disciplineComputer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en
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