Um dieser Herausforderung entgegentreten zu können, wurde „Drink Smart“, eine Active & Assisted Living- Lösung, entwickelt. Das zweite Ziel — ebenfalls unter Performanz fallend — war die ...Kommunikation des Drink Smart Systems mit einer elektronischen Pflegedokumentation bzw. das Angebot einer Stand-Alone-Lösung mithilfe einer Smartphone Applikation. Für die Evaluation der Projektziele wurden den Überkategorien Forschungsfragen zugeordnet, beispielsweise _ Welche technische Performanz erreicht das Drink Smart System im Alltag und in der Nutzung durch die Zielgruppen? _ Welche Funktionalitäten konnten bzw. konnten nicht umgesetzt werden? _ Welche technische Performanz erreicht das System in einer praxisnahen Anwendung? _ Welche Probleme können in der Gebrauchstauglichkeit während des Pre-Trails identifiziert werden? _ Welche Usability-Probleme bzw. Während der Pre-Trials fand eine heuristische Evaluation durch eine Expertin in Bezug auf die Usability sowie eine Testung auf Stabilität, Funktionalität und Einsatzsicherhit durch Projektmitarbeiter der Fachhochschule Campus Wien (FHCW) und der MIK — mobile, individuelle Krankenpflege -OG statt.
The System Usability Scale (SUS) is the most widely used standardized questionnaire for the assessment of perceived usability. This review of the SUS covers its early history from inception in the ...1980s through recent research and its future prospects. From relatively inauspicious beginnings, when its originator described it as a "quick and dirty usability scale," it has proven to be quick but not "dirty." It is likely that the SUS will continue to be a popular measurement of perceived usability for the foreseeable future. When researchers and practitioners need a measure of perceived usability, they should strongly consider using the SUS.
Scope of Usability Tests in IS Development Tarkkanen, Kimmo; Harkke, Ville
AIS transactions on human-computer interaction,
09/2019, Letnik:
11, Številka:
3
Journal Article
Recenzirano
Odprti dostop
Despite being a common, established concept in wide usage, usability tests can vary greatly in their goals, techniques, and results. A usability test that one purchases and performs for a specific ...software product may result in either minor user interface improvements or radical U-turns in development. Researchers have discussed such variation as a problem that concerns testing method’s scientific reliability and validity. In practice, what “kind of data” one can expect to obtain from the selected method has more importance than whether one always obtains the same data. This expectation about information content or “scope” has importance for those who select and conduct usability tests for a specific purpose. However, researchers rarely explicitly state or even discuss scope: too often they adopt the premise that, because a usability test involves users, it brings the (necessary) user-centeredness to the design (i.e., takes socio- technical fundamentals as inherently given). We reviewed the literature on testing practices and analytical consideration and searched for the scope of a usability test that could deliberately approach the socio-technical tradition and equally develop both the system and the user organization. A case example represents a possible realization of the extended scope of usability test.
Just enough, just in time, just for me Müssig, Carsten
Procare: Das Forbildungsmagazin Fur Pflegeberufe,
02/2019, Letnik:
24, Številka:
1-2
Journal Article
Recenzirano
Performance Support kann verschiedene Themen und Wissensdomänen umfassen: ▪ Klinikeigene Pflegestandards und Pflegemaßnahmen ▪ Medizinisches Wissen ▪ Standorte und Raumpläne ▪ Download von Dokumenten ...▪ Gerätebeschreibungen ▪ Telephonnummern und Ansprechpartner ▪ Notfallpläne ▪ Information und direkte Verbindung zu anderen digitalen Services Just enough. Context is king Bei einer Internet-Recherche nach einer Mahlzeit werden um 9 Uhr morgens andere Ziele erwartet als um 7 Uhr abends. Performance Support dient der Bereitstellung von Information. User-centered design for the web and beyond; 2011; Berkeley, New Riders: Hall, E. Just enough research; 2013; New York, A Book Apart: Jacobsen, J; Meyer, L. Praxisbuch Usability und UX; 2017; Bonn, Rheinwerk: Kalbach, J. Mapping experiences; 2016; Sebastopol USA, O’Reilly Media: Löffler, M. Think Content! Galileo Computing; 2015; Rosenfeld, L; Morville, P; Arango, J. Information architecture; 2015; Sebastopol USA, O’Reilly Media: Semler, J. App-Design; 2016; Bonn, Rheinwerk:
Abstract
Introduction
We created Sleepfect Tracker, a researchkit-based cross platform app to explore the feasibility and acceptability of a sleep tracking app for sleep self-management.
Methods
We ...developed Sleepfect Tracker app on Appbakery, a DIY app making platform using ResearchKit for iOS and ResearchDroid for Android users. Sleepfect allows participants to track their sleep behavior (weekly via sleep diary) and environment (monthly), as well as their total sleep time and step counts data via Apple’s HealthKit, Android step count sensors, or Fitbit (wearable). Three hundred and ninety-five (395) individual from around the globe downloaded the app and 163 unique users answered surveys on their sleep behavior, environment, and architecture. In total we collected 6429 sleep and 2882 step data points and provided insights into user sleep behavior and sleep environment. We also analyzed whether sleep duration was associated with steps.
Results
Regarding immediate sleep environment and behavior, 11.1% worked or studied in bed, 27.0% reported having pets in bed, 39.7% red in bed prior to sleep, 40.3% watched TV in bed prior to sleep, 11.3% drank alcohol prior to bed, 9.8% smoked prior to bed or wake during night, 8.1% ate snack at bedtime, and 6.5% ate when they awake at night. 74.3% of the participants used electronic devices in their bedroom. Of the participants who used electronic devices in the bedroom, 52.1% had an average sleep duration of 6-8 hours and 29.8% reported sleeping 4-6 hours. Of the participants who did not use electronic devices in bedroom, 30.1% slept 4-6 hours, 31.8% slept 6-8 hours, and 32.45% slept 8-10 hours, on average. The relationship between steps count and sleep hours was trending, r=.16, p=.07.
Conclusion
Users can evaluate their sleep habits, monitor daily sleep-related behaviors through Sleepfect tracker. The app demonstrated initial usability and feasibility, but long-term usability and effectiveness must be evaluated. Further investigations on which functions will be more useful to help user to improve their sleep and engage users should be considered.
Support
K01HL135452, R01MD007716, R01HL142066, and K07AG052685
•Usability of online learning platforms is an important issue in times of COVID-19.•Digital divide of consumption platform does not have any effect on the usability.•Usability approach by HCI and IS ...communities are related and produce similar result.
The COVID-19 pandemic has resulted in a physical shutdown of all types of educational institutes worldwide due to which the education delivery has now shifted to an “online only” exclusivity model. In this perspective, perceived usability of the online learning platforms that are currently being used is an important aspect, especially due to the absence of any physical classes. In this work Microsoft Teams is used as the reference platform for which the perceived usability is evaluated. For the evaluation purpose a dual strategy is followed by using the System Usability Scale (SUS), which is a Human Computer Interaction (HCI) based approach, and the Technology Acceptance Model (TAM), which is an Information Systems (IS) based approach. Although both these instruments are popular in their respective domains, yet they have not been considered simultaneously in one work for the purpose of usability evaluation. By doing so, this work attempts to streamline and unify the process of usability evaluation. Results that are obtained from a large-scale survey of university students show the similarity and equivalency between the two methodologies, with the Perceived Ease of Use (PEOU) construct of TAM having greater similarity with SUS. Moreover, this work also considers the digital-divide aspect (mobile vs. web environment) that is prevalent particularly in developing countries like India, and whether it has any effect on the perceived usability. Results show that the consumption platform does not have any effect on the usability aspect.
Usability of a Novel Digital Asthma Management Program Harris, Bronwyn U.; Carchia, Michael; Huffaker, Michelle F. ...
Journal of allergy and clinical immunology,
February 2019, 2019-02-00, 20190201, Letnik:
143, Številka:
2
Journal Article
A plethora of models are available for open-source software (OSS) usability evaluation. However, these models lack consensus between scholars as well as standard bodies on a specific set of usability ...evaluation criteria. Retaining irrelevant criteria and omitting essential ones will mislead the direction of the usability evaluation.
This study introduces a three-step method to develop a usability evaluation model in the context of OSS.
The fuzzy Delphi method has been employed to unify the usability evaluation criteria in the context of OSS. The first step in the method is the usability criteria analysis, which involves redefining and restructuring all collected usability criteria reported in the literature. The second step is fuzzy Delphi analysis, which includes the design and validates the fuzzy Delphi instrument and the utilisation of the fuzzy Delphi method to analyse the fuzziness consensus of experts' opinions on the usability evaluation criteria. The third step is the proposal of the OSS usability evaluation model.
A total of 124 usability criteria were identified, redefined, and restructured by creating groups of related meaning criteria. The result of the groupings generated 11 main criteria; the findings of the fuzzy Delphi narrowed down the criteria to only seven. The final set of criteria was sent back to the panellists for reconsideration of their responses. The panellists verified that these criteria are suitable in the evaluation of the usability of OSS.
The empirical analysis confirmed that the proposed evaluation model is acceptable in assessing the usability of OSS. Therefore, this model can be used as a reference metric for OSS usability evaluation which will have a practical benefit for the community in public and private organisations in helping the decision-maker to select the best OSS software package amongst the alternatives.
Researchers performed a usability study of a digital-rights-management sharing (DRMS) application with which users protect and share digital files. Besides the standard goal of identifying usability ...problems, the study investigated how expertise affects objective and perceived usability, the correlations among the usability metrics, and how the usability outcomes compared with emerging norms. The researchers divided the 18 study participants into two groups of nine according to skill level. The participants performed seven DRMS tasks. The groups differed significantly in objective usability (successful task completions, errors, and completion times) and perceived usability (ratings of a variant of the System Usability Scale SUS). Two correlations were statistically significant (success with the SUS and success with errors); all six possible correlations were in the expected direction. On the basis of the published norms, the overall success rate was below average; the SUS's overall mean was average. The main takeaways for practitioners are two practical examples. The first involved using independently derived benchmarks to assess the perceived usability and effectiveness; the second involved testing different skill groups.
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