Usability is the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction in a specified context of use. Generalpurpose usability questionnaires computer system usability questionnaire csuq, developed by james lewis lewis, 1995, 2002 at ibm, is well regarded and available in the public domain. Comparing sus scores across different stages of a project shows how usability is changing. It consists of a 10 item questionnaire with five response options for respondents. System usability scale sus usability body of knowledge. Umux usability metric for user experience qualaroo. The system usability scale sus is a likert scalebased questionnaire to grade the usability of systems, which john brooke created back in the 80s. Hence the required sample size of participants for a usability study is one of the critical factors.
The system usability scale, or sus, is a simple survey that provides a highlevel score for the usability of a product. 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. There are different usability factors, which are expected to influence systems usability. System usability scale sus originally created by john brooke dec in 1986, sus is one of the best known standardized usability rating scales. The system usability scale sus is undoubtedly the most frequently used questionnaire to measure usability. Op if youre using acronyms in questions you shouldnt assume everyone knows what you are referring to. System usability scale sus is a questionnaire that is used to evaluate the usability of a project.
Interpreting the scores usually involves the following process. Administering sus to users of an application can provide an easy and valid measure of perceived usability. In ux, sus is always used in an online survey or after each usability testing session for users to fill in. An overview of the system usability scale in library. Usability factors assessment in health information system. Small, frequent usability tests provide much better value than one. 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.
The system usability scale sus is a standardized metric for measuring the usability of a website or other interactive system. In order to reap the potential benefits of telehealth technologies, the delivery system has to be usable for both patients and clinicians. It has been used extensively by various industries to test numerous systems and applications, including hardware, software, mobile devices, websites and applications usability. Untuk mempermudah mempelajari system usability scale sus maka saya lampirkan template perhitungan system usability scale sus beserta net promoter score nps yang biasa saya gunakan, dapat. Weve found the umuxlite particularly helpful for benchmarking many internal it productsits short and easily fits into surveys. The sus is a 10 item questionnaire with 5 response options.
The system usability scale brooke, 1996 is a widely used, standardized 10item questionnaire to measure user satisfaction. Original system usability scale, also known by its abbreviation as sus was developed by john brooke in 1986, it allows you to evaluate a wide variety of products and services, including hardware, software, mobile devices and websites. The system usability scale sus is a 10item likert scale questionnaire that provides an ataglance look at the ease of use or lack thereof of websites, software, hardware, mobile devices, and other technological applications. The system usability scale sus is a reliable tool for measuring the usability. I think that i would like to use this website frequently. Participants will rank each question from 1 to 5 based on how much they agree with the statement they are reading. It measures the perceived usability level of a product. 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. 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. The system usability scale sus is a simple, tenitem scale giving a global view of subjective assessments of usability.
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 system usability scale sample survey template consists of only 10 questions, which are answered using a likert scale. Short informal usability test report template doc 216kb long formal usability test report template doc. It focuses on providing lightweight 10 questions subjective feedback from users. Measuring and interpreting system usability scale sus. System usability scale survey template by questionpro is a questionnaire that is used to evaluate the usability of a project. The site has a huge library of templates and resources, including consent forms, report templates, and sample emails. Measuring usability with the system usability scale sus. System usability scale sus is one of the most efficient ways of gathering statistically valid data and giving your appsite a clear and reasonably precise score.
The system usability scale sus is a popular usability questionnaire thats free and short at 10 items. The system usability scale sus is a 10item questionnaire that was published by john brooke in 1996 as a quick and dirty usability scale. Errors preventions, patient safety and privacy are vital usability factors and should not be. System usability scale sus this is a standard questionnaire that measures the overall usability of a system. The system usability scale sus is widely used as a quick method for measuring usability.
I think that i would need the support of a technical person to be able to use this system. Pdf what does the system usability scale sus measure. It is a simple, tenitem likert scale with five response options for respondents. For german users, a group of sap usability professionals made a translation available in 20 which we proudly repost in this community. Take your raw sus score and convert it to a percentile rank relative to 500 other products or several industry benchmarks.
Learn more about uses of system usability scale with examples of questions used in a sus questionnaire and also how to calculate sus score. Pssuq originated from an internal ibm project called sums system usability metrics in. Like the sus, it can be administered after a usability test or as part of a larger survey. Usability questionnaire an overview sciencedirect topics. Standard usability score questions apache openoffice wiki. 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. System usability scale measurement tool quick usability. This questionnaire is used as a quantitative method to dwell upon the global view on the subjective assessment of usability. The participants scores for each question are converted to a new number, added together and then multiplied by 2. The system usability scale sus a reliable, lowcost usability scale that can be used for global assessments of systems usability. What is sus and how it can help you improve usability of your product. Usability tests should be conducted throughout the design cycle, first on paper or early computer prototypes, then on a more complete system.
Medical practitioners usually encounter usability difficulties while using a health information system like other systems. November 1, 2019, filed under art and design this and many other posts are also available as a pretty, wellbehaved ebook. System usability scale online with analytics usabilitest. The sus survey to score the sus, subtract the scale position from 1 on all oddly numbered items, and subtract 5 from the scale position on all evenly numbered items. Originally developed by john brooke in 1986, over the last 31 years its become an indispensable method to quickly and accurately determine how a sites user experience compares to industry standards. Bagaimana mengukur kebergunaan produk dengan system. The sus has been around since the commandline interface days of the 1980s, and has been repeatedly demonstrated experimentally to be. The usability scale sus is a standardized set of survey questions that allows us to benchmark our application against other offerings highlights. How to use the system usability scale sus to evaluate.
In systems engineering, the system usability scale sus is a simple, tenitem attitude likert scale giving a global view of subjective assessments of usability. I think that i would like to use this system frequently. It is widely used to measure users perceived satisfaction of a website, software, system or product at the end of a study. System usability scale template sus digital equipment corporation. To meet the timing needs for product development, usability testing needs to be performed in a quick, cost effective manner. These are not percentages and should be used in terms of their percentile ranking. For each of the following statements, mark one box that best describes your reactions to the website today. In response to these requirements, a simple usability scale was developed. Sus the system usability scale in response to these requirements, a simple usability scale was developed. Development of the telehealth usability questionnaire tuq.
Systems usability is one of the critical attribute of any systems quality. The translation is based on a crowdsourcing project initiated by wolfgang reinhardt during his time at the university of paderborn. System usability scale sus a key tool in that usability metric toolbox is the system usability scale. System usability scale an overview sciencedirect topics. A sus score appeals to stakeholders because it is simple, reliable and costeffective. The system usability scale is a likert scale which includes 10 questions which users of your website will answer. 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.
To use the umuxlite, administer it just like the sus on a 5 or 7point agreedisagree scale. Umux gives you a greater amount of insights that your users can provide quickly. Ill embed a link in the question for context for those unfamiliar with the term. The most wellknown questionnaire used in ux research is the system usability scale sus. Sample size in the application of system usability scale. The pssuq poststudy system usability questionnaire is a 16item standardized questionnaire. How to measure product usability with the system usability. Umux evaluates usability based on the official definition and. This will help to identify usability issues as they arise it is much easier to make changes to early designs than a final system. System usability scale survey template sample survey. Strongly disagree strongly agree i think that i would like to use this website frequently. The session being audiovideorecorded cross out as appropriate. This construct is a key to making systems easy to learn and easy to use.
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