The effect of experience on system usability scale ratings. Exploring user satisfaction for elearning systems via. Extension of technology acceptance model by using system usability scale to assess behavioral intention to use elearning anastasia revythi and nikolaos tselios ict in education group, dept. The system usability scale sus is a simple, tenitem scale giving a global view of subjective assessments of usability. The system usability scale, or sus, was created in 1986 by john brooke as a quick and dirty way to measure the usability of products usability. Enterprise search and usability system usability scale sus sample size jsc search system usability scores future work take away to be avoided. For each of the following statements, mark one box that best describes your reactions to the website today. Evaluating and monitoring the usability of an elearning system is considered to be an important task in order to ensure the effectiveness of the system 6. The sus is a 10 item questionnaire with 5 response options. Sousa is lecturer assistant professor in marketing at the michael smurfit graduate school of business, university college dublin, ireland. The translation is based on a crowdsourcing project initiated by wolfgang reinhardt during his time at the university of paderborn. Empirical evaluation of the system usability scale orfanou, tselios and katsanos univ.
Pdf perceived usability evaluation of learning management. The system usability scale sus is an inexpensive, yet effective tool for assessing the usability of a product, including web sites, cell phones, interactive voice response systems, tv applications, and more. The system usability scale sus is a simple, widely used 10statement survey developed by john brooke while at digital equipment corporation in the 1980s as a. The system usability scale sus is an inexpensive, yet effective tool. Sus matning test av anvandbarheten av ett system som helhet. Jan 21, 2020 the purpose of the system causability scale is to provide a simple and rapid evaluation tool to measure the quality of an explanation interface humanai interface or an explanation process itself. Perceived usability affects greatly students learning effectiveness and overall learning experience, and thus is an important requirement of educational software. Factor analysis of two independent sus data sets reveals that the sus actually has two factors usable 8 items and learnable 2 items specifically, items 4 and 10. An overview of the system usability scale in library website.
Empirical evaluation of the system usability scale semantic scholar. We were inspired by the system usability scale and the framingham model which is often in use in daily routine. However, surprisingly few studies have used sus to evaluate the perceived usability of learning management systems lmss. Methods of usability testing in the development of ehealth. Scale sus as a quick and dirty method of evaluating the usability of different websites, software, and other humanmachine systems. The system usability scale sus is a 10item scale for assessing user friendliness 43 and appropriateness of a tool for a given context 44. The purpose of the system causability scale is to provide a simple and rapid evaluation tool to measure the quality of an explanation interface humanai interface or an explanation process itself. The study utilizes one of different applications of sus on academic websites in which, the users are not implored.
Usability evaluation in the lab carefully selected set of representative tasks e. For german users, a group of sap usability professionals made a translation available in 20 which we proudly repost in this community. We were inspired by the system usability scale and the framingham model which is. It was developed by john brooke at digital equipment corporation in the uk in 1986 as a tool to be used in usability engineering of electronic office systems. It provides an easytounderstand score from 0 negative to 100 positive. Exploring user satisfaction for elearning systems via usage. For almost 20 years, practitioners and researchers have been using the system usability scale sus as a quick and dirty method of evaluating the usability of different websites, software, and other humanmachine systems. The utilization of system usability scale sus edinburgh napier. In an empirical evaluation of the system usability scale2 the author claims that for internetbased web pages 50 users are needed to get a good result.
An evaluation of the empirical research in the literature export performance measurement. Miller, journalinternational journal of humancomputer interaction, year2008, volume24, pages574 594. How to use the system usability scale sus to evaluate. This article presents nearly 10 years worth of system usability scale sus data collected on numerous products in all phases of the. The factor structure of the system usability scale. Abstractthe aim of the study is to delineate quantitative usability evaluation of 50academic websites using system usability scale. Rather more than 25 years ago, as part of a usability engineering program, i developed a questionnairethe system usability scale susthat could be used to take a quick measurement of how people perceived the usability of computer systems on which they were working. In order to quantify the satisfaction of the university participants for using the elearning platform, the system usability scale sus brooke, 1996 is considered at the end of the experiment session. Pdf of sus for printing excel spreadsheet for calculating sus scores.
Empirical evaluation of the system usability scale, authorkonstantina orfanou and nikolaos k. The empirical also called userbased methods involve observing users interacting with products or asking them to express their perceptions of a products usability, while nonempirical also called expertbased methods involve an expert making a judgement about a products usability or a structured check of a products design qualities. The sus is one of the most popular methods in the literature which is devised mainly to evaluate the usability. This paper presents an empirical evaluation of the sus questionnaire in the context. The system usability scale sus is an inexpensive, yet. Rather more than 25 years ago, as part of a usability engineering program, i developed a questionnaire the system usability scale susthat could be used to take a quick measurement of how people perceived the usability of computer systems on which they were working.
The system usability scale brooke, 1996 is a widely used, standardized 10item questionnaire to measure user satisfaction. Sus includes 10 questions that are analyzed as a whole. The system usability scale sus is a wellresearched and widely used. An empirical evaluation of the system usability scale taylor. The sus has been tried and tested throughout almost 30 years of use, and has proven itself to be a dependable method of evaluating the usability of systems compared to industry. Both of these methods have their own strengths and limitations, depending on the objectives and the context of the usability evaluation. Perceived usability evaluation of learning management. During a development experience in 2009, we used a crosssectional method to look at the effects of user profiles on ratings for commercial products that use one such instrument, the system usability scale or sus. When a sus is used, participants are asked to score the following 10 items with one of five responses that range from strongly agree to strongly disagree.
Pdf download for the system usability scale, article information. Usabilitysentiment for the enterprise and the enterprise. Their article is based on almost 10 years worth of sus data more than 200 sus studies. This article serves as an introduction to the symposium. An empirical evaluation of the system usability scale.
Usability evaluation any analysis or empirical study of the usability of a prototype or system goal is to provide feedback in software development in support of an iterative development process recognize problems, understand underlying causes, and plan changes goals of usability evaluation design construction formative evaluation. During a development experience in 2009, we used a crosssectional method to look at the effects of user profiles on ratings for commercial products that use one. I think that i would like to use this website frequently. Sus system usability scale, a summary malin fabbri. However, surprisingly few studies have used sus to evaluate the perceived usability of learning management. It provides a reference score for participants subjective view of a products or services usability. Empirical evaluation of the system usability scale orfanou, tselios, and.
In measuring usability with the system usability scale sus 4 the author states that the user group and the reliability of the test is unrelated and a sus assessment can be done with as. A usability study to improve a clinical decision support. Extension of technology acceptance model by using system. Sus the system usability scale in response to these requirements, a simple usability scale was developed. It has been used extensively by various industries to test numerous systems and applications, including hardware, software, mobile devices, websites and applications usability.
Nar samma undersokningar mats per projekt blir medelvardet 69,69. Abstract tem usability scale sus is an inexpensive, yet effective tool for assessing the usability of a product, including web sites, cell phones, interactive voice response systems, tv applications, and more. Perceived usability evaluation of learning management systems. Empirical evaluation of the system usability scale. I think that i would need the support of a technical person to be able to use this system. An empirical approach for evaluating the usability of. Literature was considered for inclusion if it was 1 focused on an ehealth application which includes websites, pc software, smartphone and tablet applications, 2 provided information about usability of the application, 3 provided empirical results of the. Eric ej1061142 perceived usability evaluation of learning.
Mar 08, 2019 the aim of the study is to delineate quantitative usability evaluation of 50academic websites using system usability scale. An overview of the system usability scale in library. Sep 25, 2019 an empirical evaluation of the system usability scale. International journal of humancomputer interaction.
While a 100point scale is intuitive in many respects and allows for relative judgments, information. Usability evaluation methods different kinds of system evaluationresearch analyticempirical analytic means reasoning and working by analysis empirical means making observationsor measurements formativesummative formative research earlier. An empirical approach for evaluating the usability of model. The system usability scale sus was invented by john brooke who, in 1986, created this quick and dirty usability scale to evaluate practically any kind of system. Two common methods used for this evaluation process are heuristic evaluation analytical method and user testing empirical method. This association strengthens the validity of the sus. The system usability scale sus is a simple, widely used 10statement survey developed by john brooke while at digital equipment corporation in the 1980s as a quickanddirty subjective measure of system usability.
An empirical evaluation of the system usability scale by. It was developed by john brooke at digital equipment corporation in the uk in 1986 as a tool to be used in usability engineering of electronic office systems the usability of a system, as defined by the iso standard iso 9241 part 11. This work is licensed under a creative commons attribution 4. Since its introduction in 1986, the 10item system usability scale sus has been assumed to be unidimensional. It is often assumed that a likert scale is simply one based on forced. The system usability scale sus was developed by brooke 1996 as a quick and dirty survey scale that would allow the usability practitioner to quickly and. I think that i would like to use this system frequently. Mar 26, 20 in an empirical evaluation of the system usability scale 2 the author claims that for internetbased web pages 50 users are needed to get a good result. The effect of user variables on academic websites usability. The goal of this symposium is to discuss the validity of the sus in usability tests and beyond. Brooke, 1996 is an instrument commonly utilized in usability testing of commercial products. Mar 26, 20 i an empirical evaluation of the system usability scale 3 har forfattaren gjort 2324 undersokningar med ett medelvarde pa 70,14 baserat pa alla undersokningarna. Jus journal template the journal of usability studies.