Evaluation Of Interface Research Articles

The usability of ventilator maintenance user interface: A comparative evaluation of user task performance, workload, and user experience.

Poor usability designed of ventilator user interface can easily lead to human error. In this study, we evaluated the usability design of ventilator maintenance user interface and identified problems related to the usability of user interface that could easily cause human error. Sixteen respiratory therapists participated in this usability study. The usability of the ventilator maintenance user interface was evaluated by participants' task performance (task completion time, task error rate), physiological workload (eye-fixation duration) and perceived workload (NASA-TLX), and user experience (questionnaire). For task performance, task completion time and task error rate showed significant differences. For task completion time, significant difference was found when conducting ventilator self-test (p < 0.001), replace the breathing circuit (p = 0.047), and check battery status (p = 0.005). For task error rate, the three ventilators showed significant difference (p = 0.012), and the Serov I showed a significantly higher task error rate than the Boaray 5000D (p = 0.031). For workload, the Serov I was associated with higher physiological and perceived workloads than other ventilators (p < 0.05). For user experience, the Boaray 5000D received better scores among the ventilators in terms of ease to maintain, friendly to maintain, and willingness to use (p < 0.05, respectively). Our study adds available literature for usability evaluation of ventilator maintenance user interface. The results indicate that the maintenance user interface of the Boaray 5000D performed better than the other two tested ventilators. Moreover, the study results also proved that eye-fixation duration can be a reliable tool for evaluating the usability of ventilator user interface.

Avaliação automática de acessibilidade do portal da UFRN

Resumo: A inclusão de pessoas com deficiência no ensino superior tem destacado a necessidade da acessibilidade nos sistemas computacionais interativos utilizados nesse ambiente. A nova versão do Portal da Universidade Federal do Rio Grande do Norte acompanhou esse movimento, considerando seu uso com leitores de tela e VLibras. Entretanto, sua acessibilidade ainda não havia sido avaliada. Este trabalho tem por objetivo identificar problemas de acessibilidade nesse Portal para subsidiar melhorias futuras na experiência de uso de pessoas com deficiência. Em junho de 2019, foi realizada uma avaliação por inspeção com os avaliadores automáticos de acessibilidade AInspector, HTML Code Sniffer e Siteimprove Accessibility Checker. Foram analisadas quantidade total, classificação como erros e avisos, princípios e critérios violados e o local de ocorrência dos problemas encontrados. Foi possível identificar oportunidades de melhoria do Portal nos aspectos de percepção, operação, compreensão e robustez de acessibilidade nas quatro páginas analisadas: “home”, “acadêmico”, “todas as notícias” e na página de uma notícia detalhada.&#x0D; Palavras-chave: acessibilidade. avaliação de interface. avaliador automático. wcag

Examination and statistical evaluation of physico-chemical parameters of windrow composting

&#x0D; The treatment and utilization of plant and animal waste and by-products from agriculture is very diverse. Traditional environmental management practices for waste management have been retained through soil conservation and the applied of recycle degradable organic substances in soil. The management of by-products from agriculture (animal husbandry) is important because a closed loop can be created to utilize by-products (manure, feathers) from the production of the main product (eggs, meat, milk) and to form a raw material for a new product. It is important to treat the resulting by-products, especially deep-litter manure, as it has served as a basis for compost-treated manure to develop an organic-based, soil-conditioning product line. Poultry manure by itself is not suitable as a substrate for aerobic decomposition, so it has to be mixed with other substances (zeolite, bentonite, soil), because of its high nutrient capacity, it is an acidifying substance.&#x0D; The aim of this study was to compost the mixture of poultry manure and hen manure by the addition of zeolite and to monitor the composting process. It was also our aim to statistically determine the effect of the zeolite on parameters describing the composting process.&#x0D; The windrow composting experiments were set up in the composting area of the University of Debrecen, Institute of Water and Environmental Management. The composting experiment was 62 days long, during which the main parameters describing the composting process were continuously monitored: temperature (°C), moisture content (w/w%), electrical conductivity (mS/cm), organic matter content (w/w%), examination of nitrogen forms (w/w%). In this study, three factors were investigated: temperature, humidity, and pH. For statistical evaluation, R software and RStudio user interface were used. We developed a repeated measurement model, in which the fixed and random effects were determined for our parameters under study, and the resulting relationships were shown on interaction plots.&#x0D; Based on our results, the temperature of the prisms has become independent of the ambient temperature and the composting stages can be separated in both the control and the zeolite treated prisms. In the repeated measurement model, we proved that treatment, time and treatment: time interaction were significant at both temperature and pH.

The evaluation of a mobile user interface for people on the autism spectrum: An eye movement study

Abstract Software solutions are increasingly used to facilitate independence for people on the autism spectrum. However, design guidelines to make software user interfaces easy to use have not been clearly defined. Here we show, through eye movement analyses, that autistic users interact differently with user interfaces than non-autistic users and make recommendations to improve user interface design. We found that autistic users process icons and images faster than texts. Using both icons and texts was also effective in facilitating comprehension. However, we discovered that non-complementary icons and texts confuse users. Our results illustrate that users on the autism spectrum process user interfaces differently than non-autistic users. We anticipate our findings to improve user interface design for individuals on the autism spectrum.

Evaluation of information systems user interface by means of software quality`s models

The concept of information systems user interface quality has multidimensional content, which is difficult to isolate and measure due to the lack of a formalized model for assessing quality and terminological differences of quality indicators in standards. This work is aimed at finding solutions for using well-known software quality models in the interest of evaluating the user interface. The ratio of user interface assessment parameters to their presence in software quality assessment models is established; drawn regarding their evolutionary transformation are conclusions.

Triggers and connection-making for serendipity via user interface in recommender systems

This paper reports on the use of transparency in recommender a system that facilitates serendipitous encounters for users. Currently, there are serendipitous recommender systems that facilitate serendipitous encounters; however, there are no studies on the connection-making process or on the process of achieving connection-making through a user interface design. Adding to our previous work on connection-making and serendipity-facilitating recommender systems, we examine transparency in recommender systems as it relates to connection-making we studied transparency of recommendations to foster connection-making. This study is novel as it introduces a new user interface design for recommender system in academia and new study methods and approaches and studies a large group of users who are using this recommender system. The user interface components such as bubble messages on recommender system mechanism, user controls on manipulating the recommender system outcomes and showing authors work addition to recommendation. Repeated measure design of research was used to study serendipity and task load among users for Google Scholar and JabRef related work user interface (User interface developed for Experiment). Subjective evaluation of user interface was done along with NASA-Task Load Index for workload measurement. Further sentiment analysis was conducted for validations of findings. Our study finds that serendipitous recommendations and user satisfaction is facilitated via transparency in recommender systems. Furthermore, we found that transparency enhances interactivity for users who are looking for novel and useful recommendations related to their work. This work contributes to human computer interaction studies of recommender systems and reviews the leading literature on transparency, serendipity, and recommender systems in learning environments.

Applying Heuristics Evaluation to Improve the Usability of Malaysia Accounting Training Management System

The website is a connection of communication between the organization and their customers. By using web applications customers can obtain information and deal with the organization. The user interface and the interface design of web-based application affect the interest and attention of the customers. The consideration of web navigation, web usability and web accessibility are compulsory to make a website was designed in a user-friendly format. This study aimed to evaluate system based on issues of interface design with focusing on human-computer interaction and user interface design which are error human handling and accessibility. The questionnaire based on questions from the User Interface Usability Evaluation (User Interface Usability Evaluation) was conducted to obtain feedback on the system developed. The findings and results of the questionnaire was used to assess whether the training management system design interface both in terms of handling and ease of access error information (error information handling and accessibility).

Usability Evaluation of a Tangible User Interface and Serious Game for Identification of Cognitive Deficiencies in Preschool Children

Detecting deficits in reading and writing literacy skills has been of great interest in the scientific community to correlate executive functions with future academic skills. In the present study, a prototype of a serious multimedia runner-type game was developed, Play with SID, designed to detect deficiencies in cognitive abilities in preschool children (sustained attention, memory, working memory, visuospatial abilities, and reaction time), before learning to read and write. Usability tests are used in Human-Computer Interaction to determine the feasibility of a system; it is the proof of concepts before the development of real systems. The aim of this paper was to evaluate the usability of the interface of the serious game, as well as the tangible user interface, a teddy bear with motion sensors. A usability study using the Wizard of Oz technique was conducted with 18 neurotypical preschool participants, ages 4 to 6. Concepts related to interactivity (interaction, the fulfillment of the activity objective, reaction to stimuli, and game time without distraction) were observed, as well as eye-tracking to assess attention and the Usability Scale System (SUS) to measure usability. According to the usability evaluation (confidence interval between 74.74% and 90.47%), the prototype has good to excellent usability, with no statistically significant differences between the age groups. The observed concept with the highest score was the game time without distraction. This characteristic will allow evaluating sustained attention. Also, we found out that the tangible interface use leads to the observation of laterality development, which will be added to the design of the serious game. The use of observation-based usability assessment techniques is useful for obtaining information from the participants when their communication skills are developing, and the expression of their perception in detail is limited.

Codebook Co-Development to Understand Fidelity and Initiate Artificial Intelligence in Serious Games

This study aimed to identify and rank the serious game fidelity themes that should be considered for retaining both the learning potential and predicted market growth of serious games. The authors also investigated existing links between fidelity and AI. The methodology unraveled serious game fidelity through the co-development of a theory- and data-driven codebook, applying the constant comparison method for data analysis. The theory-driven codes stemmed from literature while the data-driven codes emerged from a heuristic user interface evaluation of a comic book style game, named ExMan. This article identifies five fidelity themes, with functional fidelity as most important, and postulates that functional fidelity is most suited to AI integration. This study delivers a fidelity-for-serious-games codebook and concludes that observing the suggested fidelity hierarchy could safeguard that neither digital game-based learning is watered down, nor the lustre of digital gameplay dulled. Furthermore, the authors hold that AI for serious games should be given a high design priority.

Assessing the quality of mobile graphical user interfaces using multi-objective optimization

Aesthetic defects are a violation of quality attributes that are symptoms of bad interface design programming decisions. They lead to deteriorating the perceived usability of mobile user interfaces and negatively impact the User’s eXperience (UX) with the mobile app. Most existing studies relied on a subjective evaluation of aesthetic defects depending on end-users feedback, which makes the manual evaluation of mobile user interfaces human-centric, time-consuming, and error-prone. Therefore, recent studies have dedicated their effort to focus on the definition of mathematical formulas that each targets a specific structural quality of the interface. As the UX is tightly dependent on the user profile, the combination and calibration of quality attributes, formulas, and user’s characteristics, when defining a defect, are not straightforward. In this context, we propose a fully automated framework which combines literature quality attributes with the user’s profile to identify aesthetic defects of MUI. More precisely, we consider the mobile user interface evaluation as a multi-objective optimization problem where the goal is to maximize the number of detected violations while minimizing the detection complexity of detection rules and enhancing the interfaces overall quality in means of guidance and coherence coverage. We conducted a comparative study of several evolutionary algorithms in terms of accurately identifying aesthetic defects. We reported their performance in solving the proposed search-based multi-objective optimization problem. The results confirm the efficiency of the indicator-based evolutionary algorithm in terms of assessing the developers in detecting typical defects and also in generating the most accurate detection rules.

A Mobile Application for Patient Engagement to Support Interdisciplinary Care.

There is evidence on interrelationships between several dental and chronic diseases. However, dentists and general practitioners often lack information when treating such multimorbid patients. Engagement of the patient in the decision making process may help to fill this gap and improve intersectoral care. The Dent@Prevent project therefore aims to develop a mobile application that can be used by patients to report information about their health status for interdisciplinary care. In this paper, the user interface concept and evaluation of the prototype of this mobile application is presented.

A Usability Evaluation Experiment of 3D User Interfaces for Elderly

Health professionals have used 3D user interfaces as support tools for the elderly rehabilitation, offering fun and beneficial resources for the practice of physical and cognitive activities to them. In this context, it is necessary to establish mechanisms to evaluate the usability of these interfaces, in order to achieve a balance between functionality, ease of use and sense of well-being. The aim of this study is to report a usability evaluation experiment of a virtual reality game developed specifically to elderly people, as a means to identify the needs of this public regarding 3D user interface evaluation. An initial methodology was tested exploring two points of view in the game, and its results showed that it was adequate for seniors. However, it was noted the need to include training periods and an evaluation with a heterogeneous group of seniors to consolidate and optimize the proposed approach, as well as readjust the instruments used.

Design and evaluation of a graphical user interface for facilitating expert knowledge transfer: a teleoperation case study

Nowadays, teleoperation systems are increasingly used for the training of specific skills to carry out complex tasks in dangerous environments. One of the challenges of these systems is to ensure that the time it takes for users to acquire these skills is as short as possible. For this, the user interface must be intuitive and easy to use. This document describes the design and evaluation of a graphical user interface so that a non-expert user could use a teleoperated system intuitively and without excessive training time. To achieve our goal, we use a user-centered design process model. To evaluate the interface, we use our own methodology and the results allow improving its usability.

Evaluation of User Interface Performing a DVZ-Fuzzy Logic Pilot for Powered Wheelchair

Evaluation of User Interface Performing a DVZ-Fuzzy Logic Pilot for Powered Wheelchair

Developing an ICT-based System to Support Care-dependent Older Persons to Continue to Live in Their Own Homes; User Interface Evaluation

Developing an ICT-based System to Support Care-dependent Older Persons to Continue to Live in Their Own Homes; User Interface Evaluation

AHP를 이용한 고령자의 헬스케어 애플리케이션 UI 사용성 평가지수 개발

본 연구는 다기준 의사결정 방법인 AHP 기법을 이용하여 고령자 관점의 모바일 헬스케어 애플리케이션 UI 사용성 평가지수를 개발하는데 목적을 두고 있다. 이를 위해 전문가 집단을 대상으로 쌍대비교 설문조사를 실시하여 4개의 사용성 평가요인과 13개의 세부 평가요인에 대한 상대적 중요도 및 우선순위를 도출하였다. 분석 결과, 고령자를 위한 모바일 헬스케어 애플리케이션 UI 사용성 평가요인은 프로세스, 디자인, 콘텐츠, 시스템 순으로 높은 가중치가 도출되었다. 또한 세부 평가요인에 대한 통합가중치 산출 결과, 편리성, 텍스트, 이해성, 효율성, 적합성, 색체, 유연성, 레이아웃, 매력성, 그래픽, 위험성, 오류, 서비스 요인의 순서로 중요도가 높은 것으로 나타났다.

User Interface Evaluation by Two Factor Model and Heuristic Evaluation: A Perspective from Ecommerce Industry of Pakistan

Objective: In today’s world buyers have the luxury to purchase products using ecommerce applications from their mobile phone or any other handheld device? This study extends the research on user behavior pertaining to Interface. Methods: The study looks forward to understand a wider audience by analyzing three renowned e-commerce applications in the market, which includes kaymu.pk, daraz.pk and yayvo.com. The focus of the research is on online store applications design factors and their influence on the buying actions of the consumer. For that hygiene–motivation theory is selected , after selecting the theory the variables used in this research are Satisfaction, Dissatisfaction (dependent variables), Navigation, Information Display, Response Time (Hygiene Factors), Screen Complexity, Visual Appearance and User Empowerment (Motivation factors) depicting independent variables. Three different Evaluation methods have been used, namely statistical evaluation, heuristic evaluation and cognitive walkthrough is used. Findings: With the help of statistical finding we are concluding the best application which satisfies the customer most. Application: With help of our analysis we come to conclusion that Daraz is the best interface among all three applications. Keywords: Ecommerce, Evaluation Method, Heuristic Evaluation, User Interface

User interface evaluation of official store for FMCG (fast moving consumer goods) products in e-commerce website using user experience approach

Currently, digital technology makes people can do online shopping using e-commerce. Sales of FMCG products through e-commerce websites are currently growing rapidly and will continue to improve in the following years. When using a website, user experience becomes more important than any other products or services. However, from previous research, there is still usability problem when a user using the official store for FMCG product in an e-commerce website. This study aims to evaluate the official store’s user interface using the user experience approach with performance metrics, self-reported metrics, behavioral metrics, and issue-based metrics that assess performance, perception, behavior, and issue that the user perceives when interacting with the website. Based on the evaluation results, the dimensions of ease of use, interface quality, and satisfaction was not good enough, so that strategy and interface design recommendation are done.

User interface evaluation of mobile application krl access using user experience approach

The development of technology happens in various aspects, one of the aspects is information and communication technology. In the development of information and communication technology era, internet is a thing that can not be separated. The most widely used device for internet browsing is smartphone devices. Total of mobile phone users in Indonesia is growing simultaneously with mobile app users in Indonesia. Mobile application that are downloaded by many Indonesian smart phone users are transportation, references, maps or navigation, and news. Therefore, an Android based app is created that can display train and schedule information. From previous research, the level of commuterline (KRL) passengers’ satisfaction is affected by the complete information that the train operation gives to its customers. The purpose of this study is for evaluating the User Interface of the KRL mobile application Access using the User Experience approach that uses performance metrics, self-reported metrics, behavioural metrics, and issue-based metrics that assess how perceived performance, perceptions, behaviour and user’s impressions in interactions with the application. Based on the evaluation results, in the dimensions of Ease of Use, interface quality, and satisfaction was not good enough, so User Interface (UI) re-design using UI design principles and Activity Relationship Chart (ARC) is done. The result of this research is user experience assessment, recommendation, and interface re-design of Access KRL application that can increase user satisfaction.

Heuristic-based user interface evaluation of the mobile centralized doctor appointment system

Purpose This study aims to evaluate the interface of the mobile Centralized Doctor Appointment System (CDAS), the largest mobile e-government health application developed in Turkey to allow citizens to make medical appointments at public hospitals. Design/methodology/approach A total of 40 information systems engineers took part in the study. The evaluation process was mainly based on Nielsen’s heuristics. The data obtained in the evaluation process were enriched using system usability scale to conduct a more detailed analysis. Findings Based on the findings, problems related to the usability of the evaluated mobile health application were identified. The most violated heuristic items were found to be “error prevention” and “user control and freedom”, whereas the least violated heuristic item was “consistency and standards”. The participants generally categorized the usability problems they identified as “minor” or “major” according to their severity. Originality/value As a developing country, Turkey has made considerable investment in mobile e-government applications in recent years. It is equally important that mobile e-government services provided by public institutions have features that make these applications effective, efficient and satisfying for citizens. Therefore, the usability of mobile health applications in government services needs to be researched to improve their effectiveness and guide authorities, practitioners and designers.