SmartPowerchair: characterisation and usability of a pervasive System of Systems.

Whittington, P. and Dogan, H., 2016. SmartPowerchair: characterisation and usability of a pervasive System of Systems. IEEE Transactions on Human-Machine Systems. (In Press)

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DOI: 10.1109/THMS.2016.2616288

Abstract

A characterisation of a pervasive System of Systems called the SmartPowerchair is presented, integrating pervasive technologies into a standard powered wheelchair (powerchair).The SmartPowerchair can be characterised as a System of Systems (SoS) due to focusing on selection of the correct combination of independent and interoperable systems that are networked for a period of time to achieve the specific overall goal of enhancing the quality of life for people with disability. A high-level two-dimensional SoS model for the SmartPowerchair is developed to illustrate the different SoS lifecycle stages and levels. The results from a requirements elicitation study consisting of a survey targeting powerchair users was the input to a Hierarchical Task Analysis defining the supported tasks of the SmartPowerchair. The system architecture of one constituent system (SmartATRS) is described as well as the results of a usability evaluation containing workload measurements. The establishment of the SmartAbility Framework was the outcome of the evaluation results that concluded Range of Movement (ROM) was the determinant of suitable technologies for people with disability. The framework illustrates how a SoS approach can be applied to disability to recommend interaction mediums, technologies and tasks depending on the disability,impairments and ROM of the user. The approach therefore, creates a‘recommender system’ by viewing Disability Type, Impairments, ROM, Interaction Medium, Technologies and Tasks as constituent systems that interact together in a SoS.

Item Type:Article
ISSN:2168-2305
Additional Information:Copyright 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Uncontrolled Keywords:Assistive technologies; Pervasive computing; Recommender system; System of Systems; Ubiquitous computing; User interaction
Subjects:UNSPECIFIED
Group:Faculty of Science & Technology
ID Code:24815
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:06 Oct 2016 11:21
Last Modified:22 Nov 2016 11:39

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