Pdf for almost 20 years, practitioners and researchers have been. Learn more about uses of system usability scale with examples of questions used in a sus questionnaire and also how to calculate sus score. The system usability scale can give you a pretty precise spotlight on where to dig deeper for usability issues and where to unpack the rest of your ux toolbox. It was developed by john brooke at digital equipment corporation in the uk in 1986 as a tool to be used in usability.
A sus score appeals to stakeholders because it is simple, reliable and costeffective. Do not alter the order or the wording of the sus questions if you want to compare your score with the scores collected from other designs. I think i would like to use this intervention frequently 2. Participants will rank each question from 1 to 5 based on how much they agree with the statement they are reading. The system usability scale is a quick and reliable method of assessing the usability of design solutions. The sus is a 10 item questionnaire with 5 response options. In response to these requirements, a simple usability scale was developed. The system usability scale sus is a reliable tool for measuring the usability. The instrument system usability scale sus was devel oped by brooke. Comparing sus scores across different stages of a project shows how usability is changing.
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. I think that i would like to use this system frequently. Pdf validation of the system usability scale sus researchgate. The system usability scale is a likert scale which includes 10 questions which users of your website will answer. System usability scale survey template by questionpro is a questionnaire that is used to evaluate the usability of a project. Evaluating improvements and shortcomings in clinician. System usability scale an overview sciencedirect topics.
Sus the system usability scale in response to these requirements, a simple usability scale was developed. In order to improve the usability of biometric systems, it is critical to take a holistic approach that considers the needs of users as well as the entire experience users will have with a system, including the hardware, software and instructional design of a system. As a typical example, to answer some items in the isometrics questionnaire of the scale of conformity with user expectations, the users needed long. You need a quick usability assessment of an already deployed system. It will not provide insight into specific problems, but does provide easy feedback on the overall ease of use of a site or app from a users perspective. It focuses on providing lightweight 10 questions subjective feedback from users. The system usability scale sample survey template consists of only 10 questions, which are answered using a likert scale. Evaluation of usability of a neonatal health information system. This quantitative quickanddirty method can be used to measure usability. System usability scale sus usability body of knowledge.
The system usability scale sus is a simple, tenitem scale giving a global view of subjective assessments of usability. This work is licensed under a creative commons attributionnoncommercial. While theres no need to repeat everything written in that pdf, i may cite some important paragraphs from it. The system usability scale sus is a standardized metric for measuring the usability of a website or other interactive system. Measuring usability with the system usability scale sus. An overview of the system usability scale in library. Revitalizing sus, the system usability scale jens oliver meiert. The system usability scale sus is a simple, widely used 10statement survey. For german users, a group of sap usability professionals made a translation available in 20 which we proudly repost in this community. How to use the system usability scale sus to evaluate.
Bagaimana cara menggunakan system usability scale sus dan lainlainnya akan aku bahas pada artikel kali ini. The system usability scale sus brooke, 1996 is one of the surveys that can be used to assess the. Our online version of sus tool has a builtin system usability scale score calculator and the data is analyzed in realtime, producing instant and easy to read values there is a very stong correlation between sus score and adjective rating scale. Thus, there existed a need to create a scalable system capable of capturing a wide range of user responses. The system usability scale is a posttest questionnaire containing 10 different questions that address the usability and learnability of a system. System usability scale sus contains 10 questions where participants are given 15 scale to fill, according to how they agree with every statement regarding product or feature on the test. The sample below shows a pssuq questionnaire to measure the usability of a website. Pictorial system usability scale psus proceedings of the 2019. Perlu dilakukan pengujian apakah aplikasi tersebut memenuhi unsur seperti usability atau mungkin user experience. In ux, sus is always used in an online survey or after each usability testing session for users to fill in if the year 1986 crosses your mind, yes you are right to be curious. System usability scale sus a key tool in that usability metric toolbox is the system usability scale.
Learn how to create more usable, useful, and accessible websites. This questionnaire is used as a quantitative method to dwell upon the global view on the subjective assessment of usability. Sedangkan system usability scale sus proses pengujian dan perhitungan lebih rumit namun dapat dilakukan dengan jumlah sampel yang sedikit. I tried to find a standardized version of the system usability scale in german. The system usability scale sus was released into this world by john brooke in 1986. System usability scale the questionnaire is a quick and dirty option to measure usability. In addition to being a popular choice for online usability surveys, the sus can be used as a followup. A subjective image quality rating scale bangor, 2000.
Pdf longitudinal studies have to do with testing over time and thus take into. The translation is based on a crowdsourcing project initiated by wolfgang reinhardt during his time at the university of paderborn. This notion is neatly summed up by terry pratchett in his novel moving pictures. Methodology system usability scale measurement tool. Intervention usability scale ius adapted from the system usability scale 1. Salah satunya pengujian usability bisa dilakukan menggunakan system usability scale sus. Pssuq poststudy system usability questionnaire uiux trend. It has become an industry standard with references in over 600 publications. The system usability scale brooke, 1996 is a widely used, standardized 10item questionnaire to measure user satisfaction. System usability scale susthat could be used to take a. The system usability scale sus is the most widely used standardized questionnaire for the assessment of perceived usability.
The ean scheme provides users with a static image consisting of a map wherein an icon passcode path is hidden amongst other. For each of the following statements, mark one box that best describes your reactions to the website today. It is often assumed that a likert scale is simply one based on forced. Revitalizing sus, the system usability scale jens oliver. 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. It consists of a 10 item questionnaire with five response options for respondents. The participants scores for each question are converted to a new number, added together and then multiplied by 2. Usability scale sus a reliable, lowcost usability scale that can be used for. It can be used to rate the usability of any system. It also includes the scale at the end of the document. I understand that the information collected in this study is for research purposes only and that my name and image will not be used for. Scale sus as a quick and dirty method of evaluating the usability of different. How to measure product usability with the system usability. Interpreting the scores usually involves the following process.
Usability testing we incorporate multiple rounds of usability testing into the development of our products, recording responses to real life tasks within the system and tracking measures such as mouse clicks, mouse movement, and time on task. System usability scale survey template sample survey. The system usability scale sus was invented by john brooke in 1986 and is a quick and dirty but trusted way to measure the perceived usability of your website or app. Developers can leverage the outcomes of their sus efforts to better understand. What is the standardized german version of the system. System usability scale sus is a questionnaire that is used to evaluate the usability of a project. Another alternative to pssuq is the system usability scale sus.
These are not percentages and should be used in terms of their percentile ranking. System usability scale online with analytics usabilitest. Long a favorite among ux researchers for its simplicity and accuracy, sus is a valuable quantitative tool for anyone trying to optimize the user experience. To get a more complete picture, we need to rely on usability metrics that are standardized and commonly used throughout many industries, as a means to benchmark our designs when running unmoderated and moderated user research studies. System usability scale sus originally created by john brooke dec in 1986, sus is one of the best known standardized usability rating scales. I think that i would need the support of a technical person to be able to use this system. In systems engineering, the system usability scale sus is a simple, tenitem attitude likert scale giving a global view of subjective assessments of usability. The system usability scale is a questionnaire of 10 statements, much like the nps net promoter score, but instead of measuring the loyalty of customers towards your brand, the sus measures the perception of usability of your tool, system or website. In an analysis of the system usability scale, bangor, kortum, and miller note the survey provides a single score on a scale that is easily understood by a wide range of people from project managers to computer programmers 2008, p. Pdf the effect of experience on system usability scale ratings. The outcome of this need was the system usability scale, or sus. An empirical evaluation of the system usability scale. While some vendors use a 5point, easeofuse rating scale, most vendors use the system usability scale sus, which is a validated posttest questionnaire that measures user satisfaction with product usability. Measuring and interpreting system usability scale sus.
There were a lot of differences between the translations i found. The scale is a 10 item scale which seeks the subjective opinion from a user regarding a particular device. As an example, to obtain a single numerical result for a questionnairebased metric, we might use the average of scores on questions 1, 2, 5, and 8 as averaged. Pdf we have developed a pictorial multiitem scale, called psus pictorial system usability scale. What is the system usability scale sus and why is it. Measuring usability with the system usability scale sus it is the 30th anniversary of the creation of the most used questionnaire for measuring perceptions of usability. I think that i would like to use this website frequently. The system usability scale sus provides a quick and dirty, but a reliable tool for measuring the usability. The system usability scale sus is a simple, tenitem scale giving a global view of. The system usability scale sus is undoubtedly the most frequently used questionnaire to measure usability. The system usability scale, or sus, is a simple survey that provides a highlevel score for the usability of a product.
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