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Iteration in Usabilty Testing: Instructive Interfaces of a Dietary Plan in Diabetics

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Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018) (IEA 2018)

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 824))

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Abstract

The goal of usability testing is to make design decisions based on objective data and user-centered criteria. Iteration in usability testing is key to identify the design decisions that hinder the interaction between users and interfaces, additionally validates the design elements that enhance it. When the usability testing is applied to systems or interfaces related to users’ health issues, such as diabetes, benefits in both in the interaction as well in user welfare are obtained. Diabetes complications can be diminished through the metabolic control of the patient, which is achieved through the implementation of a dietary plan. Two usability assessments were carried out during the interface development, this study presents the second iteration of the assessment of the interface redesign based on the results of the first evaluation, the feedback from the participants and the application of the ergonomic guidelines. Three dimensions of usability were evaluated: satisfaction, efficiency and effectiveness. Both interfaces showed similar results in usability. The use of color was identified as a design element to be assessed in an isolated manner. The iterative assessment allowed to improve the proposed guidelines for the design of instructional interfaces and when applied in the interface design process, results in a positive effect on its usability. In addition, the recommendations made by the users of the first test were validated through the iterative testing, making this a user centered process.

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Authors and Affiliations

  1. Centro Universitario de Arte, Arquitectura y Diseño, Universidad de Guadalajara, Calzada Independiencia Norte 5075, Huentitan el Bajo, 44250, Jalisco, Mexico

    Carlos D. de Leon Zuloaga & Lilia Roselia Prado Leon

Authors
  1. Carlos D. de Leon Zuloaga
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  2. Lilia Roselia Prado Leon
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Corresponding author

Correspondence to Carlos D. de Leon Zuloaga .

Editor information

Editors and Affiliations

  1. University of the Republic of San Marino, San Marino, San Marino

    Sebastiano Bagnara

  2. Centre for Clinical Risk Management and Patient Safety, Tuscany Region, Florence, Italy

    Riccardo Tartaglia

  3. Centre for Clinical Risk Management and Patient Safety, Tuscany Region, Florence, Italy

    Sara Albolino

  4. Fraunhofer FKIE, Bonn, Nordrhein-Westfalen, Germany

    Thomas Alexander

  5. International Ergonomics Association, Tokyo, Japan

    Yushi Fujita

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de Leon Zuloaga, C.D., Leon, L.R.P. (2019). Iteration in Usabilty Testing: Instructive Interfaces of a Dietary Plan in Diabetics. In: Bagnara, S., Tartaglia, R., Albolino, S., Alexander, T., Fujita, Y. (eds) Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018). IEA 2018. Advances in Intelligent Systems and Computing, vol 824. Springer, Cham. https://doi.org/10.1007/978-3-319-96071-5_58

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