An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training

Navigation assistive technologies have been designed to support the mobility of people who are blind and visually impaired during independent navigation by providing sensory augmentation, spatial information and general awareness of their environment. This paper focuses on the extended Usability and...

Full description

Bibliographic Details
Main Authors: Paraskevi Theodorou, Kleomenis Tsiligkos, Apostolos Meliones, Costas Filios
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/12/4538
_version_ 1797482418542739456
author Paraskevi Theodorou
Kleomenis Tsiligkos
Apostolos Meliones
Costas Filios
author_facet Paraskevi Theodorou
Kleomenis Tsiligkos
Apostolos Meliones
Costas Filios
author_sort Paraskevi Theodorou
collection DOAJ
description Navigation assistive technologies have been designed to support the mobility of people who are blind and visually impaired during independent navigation by providing sensory augmentation, spatial information and general awareness of their environment. This paper focuses on the extended Usability and User Experience (UX) evaluation of BlindRouteVision, an outdoor navigation smartphone application that tries to efficiently solve problems related to the pedestrian navigation of visually impaired people without the aid of guides. The proposed system consists of an Android application that interacts with an external high-accuracy GPS sensor tracking pedestrian mobility in real-time, a second external device specifically designed to be mounted on traffic lights for identifying traffic light status and an ultrasonic sensor for detecting near-field obstacles along the route of the blind. Moreover, during outdoor navigation, it can optionally incorporate the use of Public Means of Transport, as well as provide multiple other uses such as dialing a call and notifying the current location in case of an emergency. We present findings from a Usability and UX standpoint of our proposed system conducted in the context of a pilot study, with 30 people having varying degrees of blindness. We also received feedback for improving both the available functionality of our application and the process by which the blind users learn the features of the application. The method of the study involved using standardized questionnaires and semi-structured interviews. The evaluation took place after the participants were exposed to the system’s functionality via specialized user-centered training sessions organized around a training version of the application that involves route simulation. The results indicate an overall positive attitude from the users.
first_indexed 2024-03-09T22:32:05Z
format Article
id doaj.art-9705d3046c87484e84ba42ec5982d07d
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-03-09T22:32:05Z
publishDate 2022-06-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-9705d3046c87484e84ba42ec5982d07d2023-11-23T18:55:00ZengMDPI AGSensors1424-82202022-06-012212453810.3390/s22124538An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on TrainingParaskevi Theodorou0Kleomenis Tsiligkos1Apostolos Meliones2Costas Filios3Department of Digital Systems, School of Information and Communication Technologies, University of Piraeus, 18534 Piraeus, GreeceDepartment of Digital Systems, School of Information and Communication Technologies, University of Piraeus, 18534 Piraeus, GreeceDepartment of Digital Systems, School of Information and Communication Technologies, University of Piraeus, 18534 Piraeus, GreeceDepartment of Digital Systems, School of Information and Communication Technologies, University of Piraeus, 18534 Piraeus, GreeceNavigation assistive technologies have been designed to support the mobility of people who are blind and visually impaired during independent navigation by providing sensory augmentation, spatial information and general awareness of their environment. This paper focuses on the extended Usability and User Experience (UX) evaluation of BlindRouteVision, an outdoor navigation smartphone application that tries to efficiently solve problems related to the pedestrian navigation of visually impaired people without the aid of guides. The proposed system consists of an Android application that interacts with an external high-accuracy GPS sensor tracking pedestrian mobility in real-time, a second external device specifically designed to be mounted on traffic lights for identifying traffic light status and an ultrasonic sensor for detecting near-field obstacles along the route of the blind. Moreover, during outdoor navigation, it can optionally incorporate the use of Public Means of Transport, as well as provide multiple other uses such as dialing a call and notifying the current location in case of an emergency. We present findings from a Usability and UX standpoint of our proposed system conducted in the context of a pilot study, with 30 people having varying degrees of blindness. We also received feedback for improving both the available functionality of our application and the process by which the blind users learn the features of the application. The method of the study involved using standardized questionnaires and semi-structured interviews. The evaluation took place after the participants were exposed to the system’s functionality via specialized user-centered training sessions organized around a training version of the application that involves route simulation. The results indicate an overall positive attitude from the users.https://www.mdpi.com/1424-8220/22/12/4538UX (user experience)usabilitymobile appuser-centered trainingvisual impairments and blindness
spellingShingle Paraskevi Theodorou
Kleomenis Tsiligkos
Apostolos Meliones
Costas Filios
An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training
Sensors
UX (user experience)
usability
mobile app
user-centered training
visual impairments and blindness
title An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training
title_full An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training
title_fullStr An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training
title_full_unstemmed An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training
title_short An Extended Usability and UX Evaluation of a Mobile Application for the Navigation of Individuals with Blindness and Visual Impairments Outdoors—An Evaluation Framework Based on Training
title_sort extended usability and ux evaluation of a mobile application for the navigation of individuals with blindness and visual impairments outdoors an evaluation framework based on training
topic UX (user experience)
usability
mobile app
user-centered training
visual impairments and blindness
url https://www.mdpi.com/1424-8220/22/12/4538
work_keys_str_mv AT paraskevitheodorou anextendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT kleomenistsiligkos anextendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT apostolosmeliones anextendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT costasfilios anextendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT paraskevitheodorou extendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT kleomenistsiligkos extendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT apostolosmeliones extendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining
AT costasfilios extendedusabilityanduxevaluationofamobileapplicationforthenavigationofindividualswithblindnessandvisualimpairmentsoutdoorsanevaluationframeworkbasedontraining