A comparative analysis of cryptocurrency wallet management tools

The work is devoted to a comparative analysis of tools for managing a cryptocurrency portfolio. The study aimed to find out which of the tools is currently the best solution for users. This analysis was carried out on the basis of two tools, first: a survey conducted of among 41 responders who are cryptocurrency users, and the second one: cognitive walkthrough. Conducted analysis confirmed the thesis that the Trust Wallet tool is currently the best solution for users.

Assessing the Usability of a Tumor Dashboard for Multidisciplinary Care Teams for First Time Users; First Exploration of a Comparative Participatory Cognitive Walkthrough to Show Mismatches in Cognitive Models

Due to the COVID-19 pandemic, multidisciplinary team (MDT) meetings have to switch from physical to digital meetings. However, the technology they currently use to facilitate these meetings can sometimes be lacking, therefore many software companies have developed new software to ease our new digital workspace. In this study, we propose a new method, a comparative participatory cognitive walkthrough, which can show mismatches in cognitive models. To test our method, we tested the compatibility of EPIC EMR (EPIC Care) and the NAVIFY Tumor Board for preparing MDT meetings. The identified mismatches are categorized in the HOT-fit model by Yusof et al, a common way to evaluate if a healthcare information system fits with the healthcare professionals and the organization. In total, 16 mismatches were identified. These mismatches were discussed in a feedback session with an implementation manager of the NAVIFY Tumor Board. The proposed method seems to be a fast and cheap method to gain useful insights in how well new software matches with the software currently in use, by comparing the cognitive models in place when performing tasks involved with specific scenarios. The identified aspects can be of use for the development and adaptation of the new software, as well as provide guidelines on which aspects to focus on when training healthcare professionals to use the new software to have a smooth transition of software.

COMPARISON OF HEURISTIC EVALUATION AND COGNITIVE WALKTHROUGH METHODS IN DOING USABILITY EVALUATION OF MOBILE-BASED DEL EGOV CENTRE HOSPITAL INFORMATION SYSTEM

Usability is a factor that indicates the success of an interactive product or system, such as a mobile application. The increasing use of smartphones demands a more accurate and effective usability evaluation method to find usability problems, so that they can be used for product improvement in the development process. This study compares the Cognitive Walkthrough method with Heuristic Evaluation in evaluating the usability of the SIRS Del eGov Center mobile application. Evaluation with these two methods will be carried out by three evaluators who act as experts. Finding problems and recommending improvements from each method will produce an improvement prototype made in the form of a high-fidelity prototype. Each prototype will be tested against ten participants using the Usability Testing method, which will generate scores through the SUS table. From the test scores, the percentage of Likert scale and the success rate of each prototype will be found. The results show that between the two usability evaluation methods, the Heuristic Evaluation method is the more effective method, finds more usability problems, and has a higher Likert scale percentage, which is 66.5%, while Cognitive Walkthrough is 64.75%.

Uji Kegunaan Perangkat Lunak menggunakan Metode Cognitive Walkthrough

Praktek Kerja Lapangan (PKL) Politeknik Statistika STIS angkatan 60, khususnya divisi Sistem Komunikasi dan Kolaborasi (Sikoko) merancang sebuah forum diskusi daring berbasis web untuk memenuhi kebutuhan kegiatan, yaitu wadah diskusi saat pelaksanaan kegiatan PKL sedang berlangsung. Hal tersebut menimbulkan suatu permasalahan tentang tampilan web yang harus dibuat menyesuaikan pengguna, yaitu mahasiswa. Apabila tampilannya tidak ramah pengguna, tentu akan menghambat pengguna untuk menggunakan forum tersebut. Penelitian mengenai desain antarmuka pengguna dari web Forum PKL dilakukan dengan menggunakan salah satu metode analisis usability, yaitu Cognitive Walkthrough (CW). Hasil usability testing dengan metode Cognitive Walkthrough pada Web Forum PKL 60 diujikan dengan menjalankan skenario tugas-tugas utama yang dilakukan pada forum, seperti membuat thread, membalas thread, dan melakukan pencarian thread tertentu. Hasilnya menunjukkan penurunan tingkat kesalahan dan peningkatan tingkat penyelesaian yang dilakukan responden setelah dilakukan pengujian dan perbaikan terhadap tampilan web.

Comparison Usability Evaluation Methods in a Health Information System: Heuristic Evaluation versus Cognitive Walkthrough Method

Background There are some inconsistencies regarding the selection of the most appropriate usability evaluation method. The present study aimed to compare two expert-based evaluation methods in a nursing module, as the most widely used module of a Hospital Information System (HIS). Methods The Heuristic Evaluation (HE) and Cognitive Walkthrough (CW) methods were used by five independent evaluators to evaluate the nursing module of Shafa HIS. In this regard, the number, severity and ratio of the recognized problems according to the usability attributes were compared using two evaluation methods. Results The use of the HE and CW evaluation methods resulted in the identification of 104 and 24 unique problems, respectively. The average severity of the recognized problems was 2.32 in the HE method and 2.77 in the CW evaluation method; however, there was a significant difference between the number and severity of recognized usability problems by these methods (P < 0.001). Some problems, which were associated with effectiveness, satisfaction and error, were better recognized by the HE method; however, CW evaluation method was more successful in recognizing problems of learnability, efficiency and memorability. Conclusion The HE method recognized more problems with a lower average severity. On the other hand, CW could recognize fewer problems with a higher average severity. Regarding the evaluation goal, HE method would be used to improve effectiveness, increase satisfaction and decrease the number of errors. Furthermore, CW evaluation method is recommended to be used to improve the learnability, efficiency and memorability of the system.

Development and Evaluation of ‘FH Family Share’— A Web-Based Tool to Increase Uptake of Cascade Testing for Familial Hypercholesterolemia (Preprint)

BACKGROUND Familial hypercholesterolemia (FH), a prevalent genetic disorder, remains significantly underdiagnosed in the United States (US). Cascade testing, whereby diagnosed FH probands can contact their family members and inform them of their risk for FH, has low uptake in the US. Digital tools are needed to facilitate communication between FH probands and their family members and promote sharing of FH-related risk information. OBJECTIVE In this report we describe the creation and evaluation of a web-based tool designed to enhance familial communication and promote cascade testing for FH. METHODS A hybrid type 1 implementation science framework and a user-centered design process were used to develop an interactive web-based tool — ‘FH Family Share,’ that enables FH probands to communicate information about their FH diagnosis with at risk relatives. Probands can also use FH Family Share to draw a family pedigree, learn more about FH through education modules and access curated knowledge resources. Research-Based Web Design and Usability Guidelines from the US Department of Health and Human Services’ (DHHS) were taken into account during the design and development of the tool. The initial prototype underwent a ‘cognitive walkthrough’ conducted by usability experts, which was followed by usability testing with key stakeholders including genetic counselors (GCs) and FH patients. Participants navigated the prototype and employed the ‘Think Aloud’ technique to share feedback that was used to refine features of FH Family Share. Usability testing was informed by the International Organization for Standardization (ISO) Quality Standards for Usability. RESULTS Six key themes emerged from the cognitive walkthrough including: Design, Format, Navigation, Terminology, Instructions and Learnability. Expert feedback from the cognitive walkthrough resulted in a rebuild of the web-tool to align it with institutional standards. Usability testing with GCs and FH patients provided key insights on user experience, satisfaction and interface design and highlighted specific modifications that were made to iteratively refine the features of FH Family Share and facilitate its clinical integration. GCs and FH patients suggested inclusion of the following features in the web-tool: 1) Templated ‘letter to family member’ email; 2) Education modules; and 3) Knowledge resources. Surveys revealed that 66.7% of GCs found information within the FH Family Share tool ‘very easy to find’ and 55.6% found information ‘very easy to understand,’ while 55.6% of patients found information ‘very easy to find’ within the website and 77.8% of patients found information ‘very easy to understand.’ All GCs and patients found FH Family Share to be a resource worth returning to. CONCLUSIONS We describe the creation of FH Family Share, a web-based tool to promote cascade testing for FH by facilitating communication between probands and their relatives. Once informed, at-risk family members have the option to seek testing and treatment for FH.

The Cognitive Walkthrough for Implementation Strategies (CWIS): a pragmatic method for assessing implementation strategy usability

Background Implementation strategies have flourished in an effort to increase integration of research evidence into clinical practice. Most strategies are complex, socially mediated processes. Many are complicated, expensive, and ultimately impractical to deliver in real-world settings. The field lacks methods to assess the extent to which strategies are usable and aligned with the needs and constraints of the individuals and contexts who will deliver or receive them. Drawn from the field of human-centered design, cognitive walkthroughs are an efficient assessment method with potential to identify aspects of strategies that may inhibit their usability and, ultimately, effectiveness. This article presents a novel walkthrough methodology for evaluating strategy usability as well as an example application to a post-training consultation strategy to support school mental health clinicians to adopt measurement-based care. Method The Cognitive Walkthrough for Implementation Strategies (CWIS) is a pragmatic, mixed-methods approach for evaluating complex, socially mediated implementation strategies. CWIS includes six steps: (1) determine preconditions; (2) hierarchical task analysis; (3) task prioritization; (4) convert tasks to scenarios; (5) pragmatic group testing; and (6) usability issue identification, classification, and prioritization. A facilitator conducted two group testing sessions with clinician users (N = 10), guiding participants through 6 scenarios and 11 associated subtasks. Clinicians reported their anticipated likelihood of completing each subtask and provided qualitative justifications during group discussion. Following the walkthrough sessions, users completed an adapted quantitative assessment of strategy usability. Results Average anticipated success ratings indicated substantial variability across participants and subtasks. Usability ratings (scale 0–100) of the consultation protocol averaged 71.3 (SD = 10.6). Twenty-one usability problems were identified via qualitative content analysis with consensus coding, and classified by severity and problem type. High-severity problems included potential misalignment between consultation and clinical service timelines as well as digressions during consultation processes. Conclusions CWIS quantitative usability ratings indicated that the consultation protocol was at the low end of the “acceptable” range (based on norms from the unadapted scale). Collectively, the 21 resulting usability issues explained the quantitative usability data and provided specific direction for usability enhancements. The current study provides preliminary evidence for the utility of CWIS to assess strategy usability and generate a blueprint for redesign.