Improving usability with think aloud and focus group methods. A case study: an intelligent police patrolling system (i-PAT)

Tania Calle-Jimenez, Doris Tutillo-Sanchez, Sandra Sanchez-Gordon, Janio Jadán-Guerrero, Cesar Guevara, Patricio Lara-Alvarez, Patricia Acosta-Vargas, Luis Salvador-Ullauri, Isabel L. Nunes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study proposes the use of Think Aloud and Focus Group methods for evaluating the usability of the Intelligent Police Patrolling System (I-Pat). The study was conducted with twenty-one students of computer engineering. The study included two evaluation methods. First, the application of Think Aloud using audio recordings, image capturing and questionnaires. Second, the application of a Focus Group for brainstorming. The total number of the usability problems identified was fifteen. Comprehensiveness (46%) and layout (43%) problems were the most frequently found. The study showed that the problems encountered were due to the lack of understanding of the system’s functions, so it is recommended increasing the users’ levels of knowledge about the system. The application of these methods caused the students to find a greater number of errors than when applying a single method, allowing them to generate a report with usability improvements according to the reported errors.

Original languageEnglish
Title of host publicationAdvances in Human Factors and Systems Interaction - Proceedings of the AHFE 2019 International Conference on Human Factors and Systems Interaction
EditorsIsabel L. Nunes
Place of PublicationCham
PublisherSpringer Verlag
Pages361-373
Number of pages13
ISBN (Electronic)978-3-030-20040-4
ISBN (Print)978-3-030-20039-8
DOIs
Publication statusPublished - 1 Jan 2020
EventAHFE International Conference on Human Factors and Systems Interaction, 2019 - Washington D.C., United States
Duration: 24 Jul 201928 Jul 2019

Publication series

NameAdvances in Intelligent Systems and Computing
PublisherSpringer Verlag
Volume959
ISSN (Print)2194-5357

Conference

ConferenceAHFE International Conference on Human Factors and Systems Interaction, 2019
CountryUnited States
CityWashington D.C.
Period24/07/1928/07/19

Keywords

  • Focus Group
  • I-Path
  • Patrolling
  • Think Aloud
  • Usability

Fingerprint Dive into the research topics of 'Improving usability with think aloud and focus group methods. A case study: an intelligent police patrolling system (i-PAT)'. Together they form a unique fingerprint.

  • Cite this

    Calle-Jimenez, T., Tutillo-Sanchez, D., Sanchez-Gordon, S., Jadán-Guerrero, J., Guevara, C., Lara-Alvarez, P., ... Nunes, I. L. (2020). Improving usability with think aloud and focus group methods. A case study: an intelligent police patrolling system (i-PAT). In I. L. Nunes (Ed.), Advances in Human Factors and Systems Interaction - Proceedings of the AHFE 2019 International Conference on Human Factors and Systems Interaction (pp. 361-373). (Advances in Intelligent Systems and Computing; Vol. 959). Cham: Springer Verlag. https://doi.org/10.1007/978-3-030-20040-4_33