Volume 33, Issue 8 e3668
SPECIAL ISSUE ARTICLE

A Quality-of-Things model for assessing the Internet-of-Things' nonfunctional properties

Ayesha Qamar

Ayesha Qamar

Department of Computer Science, National University of Computer and Emerging Sciences, Islamabad, Pakistan

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Muhammad Asim

Corresponding Author

Muhammad Asim

Department of Computer Science, National University of Computer and Emerging Sciences, Islamabad, Pakistan

Muhammad Asim, Department of Computer Science, National University of Computer and Emerging Sciences, Islamabad-44000, Pakistan.

Email: [email protected]

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Zakaria Maamar

Zakaria Maamar

College of Technological Innovation, Zayed University, Dubai, UAE

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Saad Saeed

Saad Saeed

Department of Computer Science, National University of Computer and Emerging Sciences, Islamabad, Pakistan

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Thar Baker

Thar Baker

Department of Computer Science, Liverpool John Moores University, Liverpool, UK

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First published: 17 June 2019
Citations: 10

Abstract

The Internet of Things (IoT) is in a “desperate” need for a practical model that would help in differentiating things according to their nonfunctional properties. Unfortunately, despite IoT growth, such properties either lack or ill-defined resulting into ad hoc ways of selecting similar functional things. This paper discusses how things' nonfunctional properties are combined into a Quality-of-Things (QoT) model. This model includes properties that define the performance of things' duties related to sensing, actuating, and communicating. Since the values of QoT properties might not always be available or confirmed, providers of things can tentatively define these values and submit them to an Independent Regulatory Authority (IRA) whose role is to ensure fair competition among all providers. The IRA assesses the values of nonfunctional properties of things prior to recommending those that could satisfy users' needs. To evaluate the technical doability of the QoT model, a set of comprehensive experiments are conducted using real data sets. The results depict an acceptable level of the QoT estimation accuracy.

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