System Usability Testing Research Articles

The Synchronous Online Argumentation System User Interface with an Integrated Design Framework: Redesign and Evaluation

The Synchronous online argumentation system is highly needed to facilitate learning activity in this internet era. To gain deeper insights about this important issue, this study developed nine principles based on Cognitive Load, User Interface, and User Experience to redesign a system. With this framework, 48 (forty-eight) students of Chi-Ying High School had tested with two prototypes, and the second prototype used the nine principles. The systems were measured with Web-Based Learning Environment (WEBLEI) and System Usability Test (SUS). The result of WEBLEI measurement shows that the second prototype gives better result and shows higher user acceptance than the first prototype. The result of SUS measurement shows that the usability of the second prototype is better than on the first prototype with (4.43) SUS score difference. The result shows that the use of nine principles that applied to the second prototype does increase the usability and acceptance of the students.

Infectious Disease Expert System Using Dempster Shafers With Recommendations for Health Services

Delay in the handling of a type of disease can pose a risk for someone who has the surrounding environment. Often the casualties are caused by people's ignorance of the spread of dangerous infectious diseases. People's ignorance as an action that must be done immediately and where to do to get help. Thus it is necessary to build an application of an expert system that can diagnose infectious diseases, provide recommendations for disease management, and provide recommendations for appropriate and acceptable health services. The system was built to diagnose six types of infectious diseases that are of particular concern to Malang City. Various infectious diseases with similar symptoms that appear will lead to the possibility of a diagnosis and many possibilities for diagnosis. The Dempster Shafer method is an approved one that can be used in overcoming these factors. The disease expert consultation system application using the Dempster Shafer method obtained an accuracy test result of 88.5%. While the system usability test obtained results, 76% agreed to system reliability, 85% strongly agreed to system efficiency, 83% strongly agreed to ease for use system, and 79% agreed to accurate system.

Sistem Pakar Deteksi Dini Kesehatan Mental Menggunakan Metode Dempster-Shafer

Mental health is an important aspect that needs attention as much as physical health. Lack of public awareness of mental health and the deficiency time and money become some of the thought for someone to be reluctant to check himself with a psychologist / expert. This study aims to do an initial detection by detecting whether a person has a tendency to experience problems in his mental health with an expert system using the dempster-shafer method which is a method based on the theory of belief functions using the belief variable (belief) and plausibility variable. The results of this study are a web-based expert system that can detect whether a person has a tendency for mental health problems based on the conditions experienced by the user and provide information related to mental health. Testing the accuracy of the system comparation between system result and expert result used 100 data and get 94% percentage and system usability testing based on 31 correspondents and get score 3.95 out of 5. We hope that further research can develop the system by integrating the system with psychologists in around the user’s locations to consult so it is easier for users to provide more detailed solutions related to problems in mental health. In addition, it is expected that the system can be developed from the web platform to be based on Android / iOS that it will be easier for users to access the system.

Rancang Bangun dan Evaluasi Sistem Informasi Pembayaran Elektronik pada Universitas Jambi

This study aims to create an electronic payment information system (e-payment) to facilitate the process of data payment management at Jambi University. This research uses design and creation research strategy. The research used software development method which adapted from Rational Unified Process (RUP) model. RUP is a model with a very flexible process framework that can be customized for various situations in system development. In addition, this study also aims to evaluate information systems developed to determine the level of system usability. Based on the results of research, it is found that with the e-payment system applied to the University of Jambi greatly facilitate and accelerate the processing of payment data. After seeing the user's view of the usefulness of the developed system, the e-payment system is good in adjective rating, grade scale, and system acceptability range. The results of the system usability test show that the e-payment system is in very good category and acceptable by the user.

Sistem Pakar Rekomendasi Profesi Berdasarkan Multiple Intelligences Menggunakan Teorema Bayesian

Intelligence is perhaps to be the one of the most logical way to determine how smart people is. That fact has always been a problem at job because there are number of job that attract people but require a high GPA for them. Employee with high GPA doesn’t always fit in his skill and work role. They unable to understand and maintain their performance. This expert system is a necessary for recommend job using Intelligence. This research use a Bayesian theorem calculation to find out probability value and job recommendation. The value of MI (Multiple Intelligences)’s user, MI probability to a job and job probability to previous result without any evidence produce a Calculation Variable.Result of the test shows output recommendation as expert system to 81.25% match with expert recommendation. 100% users statistically states the system running well. Expert system usability test shows 80% users strongly agree, 15.7% users agree and 4.3% users are neutral.Keywords: Multiple Intelligences, Profession, Bayesian theorem

An Overview of the System Usability Scale in Library Website and System Usability Testing

An Overview of the System Usability Scale in Library Website and System Usability Testing

Synteny Explorer: An Interactive Visualization Application for Teaching Genome Evolution.

Rapid advances in biology demand new tools for more active research dissemination and engaged teaching. This paper presents Synteny Explorer, an interactive visualization application designed to let college students explore genome evolution of mammalian species. The tool visualizes synteny blocks: segments of homologous DNA shared between various extant species that can be traced back or reconstructed in extinct, ancestral species. We take a karyogram-based approach to create an interactive synteny visualization, leading to a more appealing and engaging design for undergraduate-level genome evolution education. For validation, we conduct three user studies: two focused studies on color and animation design choices and a larger study that performs overall system usability testing while comparing our karyogram-based designs with two more common genome mapping representations in an educational context. While existing views communicate the same information, study participants found the interactive, karyogram-based views much easier and likable to use. We additionally discuss feedback from biology and genomics faculty, who judge Synteny Explorer's fitness for use in classrooms.

Improving physicians' performance with a stroke CDSS: A cognitive fit design approach

A large body of evidence over many years suggests that clinical decision support systems (CDSSs) can be helpful in improving both clinical outcomes and adherence to evidence-based guidelines. CDSSs have however failed to show their effectiveness due to poor ease of use and integration within clinical workflows. This research therefore emphasizes a cognitive fit design approach to developing an effective CDSS to solve those issues. According to the cognitive fit theory CDSS should align with the problem and task representation in order to match the physician's mental model to reduce cognitive effort. Several guidelines based on the cognitive fit design are proposed. A stroke CDSS prototype following the design guidelines is developed to demonstrate its feasibility. The system usability test results showed that the developed stroke CDSS was acceptably accurate, able to lessen the cognitive effort as desired, and preferable for use due to the significant reduction in cognitive load. The developed artifact has shown the potential to benefit physicians. Finally, implications and conclusions are discussed.

Human Factors in the Large: Experiences from Denmark, Finland and Canada in Moving Towards Regional and National Evaluations of Health Information System Usability. Contribution of the IMIA Human Factors Working Group.

The objective of this paper is to explore approaches to understanding the usability of health information systems at regional and national levels. Several different methods are discussed in case studies from Denmark, Finland and Canada. They range from small scale qualitative studies involving usability testing of systems to larger scale national level questionnaire studies aimed at assessing the use and usability of health information systems by entire groups of health professionals. It was found that regional and national usability studies can complement smaller scale usability studies, and that they are needed in order to understand larger trends regarding system usability. Despite adoption of EHRs, many health professionals rate the usability of the systems as low. A range of usability issues have been noted when data is collected on a large scale through use of widely distributed questionnaires and websites designed to monitor user perceptions of usability. As health information systems are deployed on a widespread basis, studies that examine systems used regionally or nationally are required. In addition, collection of large scale data on the usability of specific IT products is needed in order to complement smaller scale studies of specific systems.