Browsing by Subject "usability"

Now showing 1 - 7 of 7
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    Advancing cognitive engineering methods to support user interface design for electronic health records
    (Elsevier, 2014-04) Thyvalikakath, Thankam P.; Dziabiak, Michael P.; Johnson, Raymond; Torres-Urquidy, Miguel Humberto; Acharya, Amit; Yabes, Jonathan; Schleyer, Titus K.; Department of Cariology, Operative Dentistry and Dental Public Health, IU School of Dentistry
    Background Despite many decades of research on the effective development of clinical systems in medicine, the adoption of health information technology to improve patient care continues to be slow, especially in ambulatory settings. This applies to dentistry as well, a primary care discipline with approximately 137,000 practitioners in the United States. A critical reason for slow adoption is the poor usability of clinical systems, which makes it difficult for providers to navigate through the information and obtain an integrated view of patient data. Objective In this study, we documented the cognitive processes and information management strategies used by dentists during a typical patient examination. The results will inform the design of a novel electronic dental record interface. Methods We conducted a cognitive task analysis (CTA) study to observe ten general dentists (five general dentists and five general dental faculty members, each with more than two years of clinical experience) examining three simulated patient cases using a think-aloud protocol. Results Dentists first reviewed the patient’s demographics, chief complaint, medical history and dental history to determine the general status of the patient. Subsequently, they proceeded to examine the patient’s intraoral status using radiographs, intraoral images, hard tissue and periodontal tissue information. The results also identified dentists’ patterns of navigation through patient’s information and additional information needs during a typical clinician-patient encounter. Conclusion This study reinforced the significance of applying cognitive engineering methods to inform the design of a clinical system. Second, applying CTA to a scenario closely simulating an actual patient encounter helped with capturing participants’ knowledge states and decision-making when diagnosing and treating a patient. The resultant knowledge of dentists’ patterns of information retrieval and review will significantly contribute to designing flexible and task-appropriate information presentation in electronic dental records.
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    Connecting in Online Technical Communication Courses: Addressing Usability Challenge for Students and Faculty Members
    (IEEE, 2016-07) Hovde, Marjorie Rush; Department of Technology and Leadership Communication, School of Engineering and Technology
    In designing and offering online technical communication courses, faculty members face many challenges, including attempting to assure the usability of the interface for students. This article addresses five of these challenges and provides options for faculty members to begin to address these challenges.
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    Connecting Library Instruction to Web Usability: The Key Role of Library Instruction to Change Students' Web Behavior
    (2015) Lee, Yoo Young; Snajdr, Eric
    The presentation was delivered at the International Conference of Asian Special Libraries (ICoASL) 2015 held in Seoul, South Korea.
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    Engagement and Usability of a Cognitive Behavioral Therapy Mobile App Compared With Web-Based Cognitive Behavioral Therapy Among College Students: Randomized Heuristic Trial
    (JMIR, 2020) Purkayastha, Saptarshi; Addepally, Siva Abhishek; Bucher, Sherri; BioHealth Informatics, School of Informatics and Computing
    Background: Recent evidence in mobile health has demonstrated that, in some cases, apps are an effective way to improve health care delivery. Health care interventions delivered via mobile technology have demonstrated both practicality and affordability. Lately, cognitive behavioral therapy (CBT) interventions delivered over the internet have also shown a meaningful impact on patients with anxiety and depression. Objective: Given the growing proliferation of smartphones and the trust in apps to support improved health behaviors and outcomes, we were interested in comparing a mobile app with Web-based methods for the delivery of CBT. This study aimed to compare the usability of a CBT mobile app called MoodTrainer with an evidence-based website called MoodGYM. Methods: We used convenience sampling to recruit 30 students from a large Midwestern university and randomly assigned them to either the MoodGYM or MoodTrainer user group. The trial period ran for 2 weeks, after which the students completed a self-assessment survey based on Nielsen heuristics. Statistical analysis was performed to compare the survey results from the 2 groups. We also compared the number of modules attempted or completed and the time spent on CBT strategies. Results: The results indicate that the MoodTrainer app received a higher usability score when compared with MoodGYM. Overall, 87% (13/15) of the participants felt that it was easy to navigate through the MoodTrainer app compared with 80% (12/15) of the MoodGYM participants. All MoodTrainer participants agreed that the app was easy to use and did not require any external assistance, whereas only 67% (10/15) had the same opinion for MoodGYM. Furthermore, 67% (10/15) of the MoodTrainer participants found that the navigation controls were easy to locate compared with 80% (12/15) of the MoodGYM participants. MoodTrainer users, on average, completed 2.5 modules compared with 1 module completed by MoodGYM users. Conclusions: As among the first studies to directly compare the usability of a mobile app–based CBT with smartphone-specific features against a Web-based CBT, there is an opportunity for app-based CBT as, at least in our limited trial, it was more usable and engaging. The study was limited to evaluate usability only and not the clinical effectiveness of the app.
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    Help: defining the usability requirements of a breast cancer long-term survivorship (LTS) navigator
    (2017-08) Al-Abdulmunem, Monirah; Jones, Josette; Kulanthaivel, Anand
    Long-term survivors (LTSs) of breast cancer are defined as patients who have been in remission for a year or longer. Even after being declared breast-cancer-free, many LTSs have questions that were not answered by clinicians. Although online resources provide some content for LTSs, none, or very little, provide immediate answers to specific questions. Thus, the aim involves proposing specifications for a system, the Health Electronic Learning Platform (HELP), that can assist survivors by becoming an all-inclusive resource for LTSs of breast cancer. To achieve this, relevant information from the literature was used to assess the needs of LTSs. Also, data from a study involving the breast cancer survivor’s forum project that had been filtered to include posts with mentions of features to be added to the website and usability issues encountered. To complete the actual design of the system, a synthesis of the results obtained from these two sources was performed. HELP is simple in terms of its layout and consists of a main search-bar, where LTSs are able to ask questions using their own terms and language. This navigator should not be taken as definitive solution, but instead, should be used as a starting point toward better patient-centered care.
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    Untold Stories in User-Centered Design of Mobile Health: Practical Challenges and Strategies Learned From the Design and Evaluation of an App for Older Adults With Heart Failure
    (JMIR Publications, 2020-07-21) Cornet, Victor Philip; Toscos, Tammy; Bolchini, Davide; Ghahari, Romisa Rohani; Ahmed, Ryan; Daley, Carly; Mirro, Michael J.; Holden, Richard J.; Medicine, School of Medicine
    Background User-centered design (UCD) is a powerful framework for creating useful, easy-to-use, and satisfying mobile health (mHealth) apps. However, the literature seldom reports the practical challenges of implementing UCD, particularly in the field of mHealth. Objective This study aims to characterize the practical challenges encountered and propose strategies when implementing UCD for mHealth. Methods Our multidisciplinary team implemented a UCD process to design and evaluate a mobile app for older adults with heart failure. During and after this process, we documented the challenges the team encountered and the strategies they used or considered using to address those challenges. Results We identified 12 challenges, 3 about UCD as a whole and 9 across the UCD stages of formative research, design, and evaluation. Challenges included the timing of stakeholder involvement, overcoming designers’ assumptions, adapting methods to end users, and managing heterogeneity among stakeholders. To address these challenges, practical recommendations are provided to UCD researchers and practitioners. Conclusions UCD is a gold standard approach that is increasingly adopted for mHealth projects. Although UCD methods are well-described and easily accessible, practical challenges and strategies for implementing them are underreported. To improve the implementation of UCD for mHealth, we must tell and learn from these traditionally untold stories.
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    Usability and Security of Different Authentication Methods for an Electronic Health Records System
    (arXiv, 2021) Purkayastha, Saptarshi; Goyal, Shreya; Oluwalade, Bolu; Phillips, Tyler; Wu, Huanmei; Zou, Xukai; BioHealth Informatics, School of Informatics and Computing
    We conducted a survey of 67 graduate students enrolled in the Privacy and Security in Healthcare course at Indiana University Purdue University Indianapolis. This was done to measure user preference and their understanding of usability and security of three different Electronic Health Records authentication methods: single authentication method (username and password), Single sign-on with Central Authentication Service (CAS) authentication method, and a bio-capsule facial authentication method. This research aims to explore the relationship between security and usability, and measure the effect of perceived security on usability in these three aforementioned authentication methods. We developed a formative-formative Partial Least Square Structural Equation Modeling (PLS-SEM) model to measure the relationship between the latent variables of Usability, and Security. The measurement model was developed using five observed variables (measures). - Efficiency and Effectiveness, Satisfaction, Preference, Concerns, and Confidence. The results obtained highlight the importance and impact of these measures on the latent variables and the relationship among the latent variables. From the PLS-SEM analysis, it was found that security has a positive impact on usability for Single sign-on and bio-capsule facial authentication methods. We conclude that the facial authentication method was the most secure and usable among the three authentication methods. Further, descriptive analysis was done to draw out the interesting findings from the survey regarding the observed variables.