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Invited Essay: No Interface? No Problem. Applying Human-Centered Design and HCDAgile to Data Projects
In October 2019, a group of human-centered designers, agilists, data scientists, and other technology enablement practitioners joined to share their thoughts about a topic of common interest: How should the principles and practices of human-centered design, Agile development, and the overarching process of HCDAgile be applied to products that have no obvious user interface? The […] [Read More]
Introduction to Volume 13, Issue 1
For our November 2017 issue, we start with an invited essay from Bill Gribbons on “Is It Time to Drop the ‘U’ (From UX)?” In this thoughtful and provocative contribution, he argues for and considers the potential consequences of changing the way we refer to our field—specifically, changing from “User Experience” to “Experience Design.” In […] [Read More]
The Revolution Will Not Be Handheld
Introduction For those working in UX through the past several years, the shift from desktop to mobile has seemed a major event. No longer are our devices clearly situated. Instead they travel with us. “Technology is now an appendage—always available in every moment of time, anywhere” (Holtzblatt & Beyer, 2017, p. 7). The shift has […] [Read More]
Has Human Factors and Usability Lost Its Mojo?
Introduction The human factors and usability community has contributed greatly to the safety, usability, and general acceptance of systems over the last 70 years. The tireless work of countless researchers and practitioners has had a significant positive impact on society. Although there are untold numbers of success stories where human factors and usability professionals have […] [Read More]
Beyond Average: Weibull Analysis of Task Completion Times
Abstract Weibull analysis is an established method in technical reliability analysis for describing and analyzing the lifetime of technical parts. This paper describes the approach and demonstrates its application on task completion times from small-sample usability tests. Fitting a Weibull distribution model to observed data lets the analyst estimate task completion rates for any given […] [Read More]
User Experience Rating Scales with 7, 11, or 101 Points: Does It Matter?
Abstract There is a large body of work on the topic of the optimal number of response options to use in multipoint items. The takeaways from the literature are not completely consistent, most likely due to variation in measurement contexts (e.g., clinical, market research, psychology) and optimization criteria (e.g., reliability, validity, sensitivity, ease-of-use). There is […] [Read More]
Re-Assessing the Usability Metric for User Experience (UMUX) Scale
Abstract Usability Metric for User Experience (UMUX) and its shorter form variant UMUX-LITE are recent additions to standardized usability questionnaires. UMUX aims to measure perceived usability by employing fewer items that are in closer conformance with the ISO 9241 definition of usability, while UMUX-LITE conforms to the technology acceptance model (TAM). UMUX has been criticized […] [Read More]