5 whys in usability. They are meant to identify usability problems. 5 whys in usability

 
They are meant to identify usability problems5 whys in usability In our sample case, you would multiply 2

‘5 whys’ is particularly useful when you’re: The five whys and five hows techniques constitute a questioning process designed to drill down into the details of a problem or a solution and peel away the layers of symptoms. HCI has always been a part of technology and design, but it is on the rise. Gather a team. This data quality dimension indicates if it is a single recorded instance in the data set used. 2. During this stage issues such as that of web application security, the. The principle of simplicity is an integral part of any good website design. 13: Identify a range of usability problems with commonly used digital devices. She. Specialized software can help support a 5 Whys analysis. Common Misconceptions. Texts included in the program are high quality and engaging, as well as appropriately rigorous and organized to support knowledge building. In HCI, Nielsen controversially claimed that only 5 participants are needed for a qualitative usability study [56] and that 20 were sufficient for more quantitative studies as this "typically. CC BY 2. Video. Usability and HCI are becoming core aspects of the system development process to improve and enhance system facilities and to satisfy users’ needs and necessities. The first of the main cloud storage benefits concerns usability and accessibility. The five whys are used for drilling down into a problem and the five hows are used to develop the details of a solution to a problem. It specifically involves evaluators examining the interface and judging its compliance with recognized usability principles (the "heuristics"). User experience — commonly abbreviated to UX — refers to all aspects of a user’s interaction with and perception of a company’s product, services, or brand. Usability refers to the quality of a user's experience when interacting with products or systems, including websites, software, devices, or applications. Disaster recovery. Usability is about effectiveness, efficiency and the overall satisfaction of the user. How to Conduct a Heuristic Evaluation. Table of contents. The app solves this problem simply by providing a voice recognition tool that instantly provides the route for the desire location. Accessibility and usability are indeed crucial aspects of the design process. This is problem-solving that focuses on: specific problem definition. There are three main assumptions behind that recommendation: That you are trying to identify issues in a design. Identifying Software Requirements Using 5 Whys and 5 Hows. There are nuances depending on how much risk you are willing to take and what exactly you are trying to measure. Usability Notes Task Timestamp Observation Category (Error, Success, etc) Severity (1-3) Questionnaire Circle words, phrases, and sentences they like Cross out words, phrases, and sentences they dislike Place. 1: S/E This includes ergonomics and accessibility. Usability testing is a subset of UX Research. Human-computer interaction (HCI) is the study of designing, implementing, and evaluating the interactive interfaces used by humans and computers. The Take Away. g. Small , cross-functional, multidisciplinary teams work best. It can also be a helpful way to clarify what’s most important in any business conversation. 5. Sounds easier said than done, you. It’s an important quality that indicates how easy a program or a website is to use. Usability testing is a crucial process that helps you understand how users interact with your website and identify areas for improvement. Root Cause Analysis "The Five Whys". e. 2: Verification of performance-based usability Requirements R1. article. When you add more test users, the discovered usability problems duplicate. In this course, you will learn how to plan and conduct a usability study to gather feedback about designs. The SUS survey is a questionnaire consisting of ten standardized questions, which are typically rated on a five-point scale. Designs can delight users at two levels: on the surface and on a deep, fundamental level. ”. Firstly, it’s important to define the problem as specifically as possible. " Each section is dedicated to exploring the consecutive layers of causes linked to the. To keep it simple, usability is the "ease of use from which users accomplish their goals or tasks when using the website. Step 1: Understand the Basics of SUS. Why Benchmark. 0 (or 100%), indicating that the new design has the same usability as the baseline. Why You Need Mobile Usability Testing. They should start general and get more specific. Understanding the UOUP (User Interface of Unknown Provenance) section of IEC 62366 -1:2015 From a regulatory standpoint the differences between IEC 62366:2007 and IEC 62366 -1:2015 are minimal, with all the same boxes needing to be ticked. The 5 Whys is a simple and effective technique that involves asking "why" repeatedly until the root cause of a problem is revealed. Humane digital intelligence. Usability refers to the quality of a user's experience when interacting with products or systems, including websites, software, devices, or applications. Never, ever say you are the designer, even if you are. Q: Why are the three metaphors used to describe human-computer interaction? A: Direct manipulation metaphor, document metaphor, and dialog metaphor. Usability is the measure of how easy something is to use, and is often used in UX design processes. Virtual reality is a great example of effective HCI in action because, when done right, it may closely mirror the real world. TSA’s web form includes a Clear Form button, which violates usability guidelines dating back more than 15 years. This cause analysis tool is considered one of the seven basic quality tools. , is a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Testing with 5 people lets you find almost as many usability problems as you'd find using many more test participants. Combat cognitive biases. Step 2: Know the business requirements and the users. Always ask open-ended questions during your test. For instance, Minoura, one of Ohno's successors at Toyota, highlights the potential for users to rely on off-the-cuff deduction, rather than situated observation when developing answers, as well as difficulty in prioritising causes, if multiple ‘5 whys’ are. With practice, you will feel comfortable. If miscommunication and confusion goes down, you’ll know you’re on the right track. Promote care coordination. 4. Problem. article. The aim is to prevent the problem from recurring by eliminating its. 1 day ago · American Express and Formula 1 announced a multi-year partnership in October. Introduction. An Introduction to 5-whys 5-whys Analysis using a Fishbone Diagram The Weaknesses of 5-Whys Downloads:5-whys Template Download and Step-by-step example on how to. Repeat Depending on the type of project or product, resources and budget, this entire process can be repeated several times to really refine and finesse areas of a user experience using just. Benchmarking allows us to assess our. Qualitative usability studies are dependent on a few key pieces: a design to test, a participant to test it, and (often) a moderator to run the session. ” Here’s an example Toyota offers of a potential 5 Whys that might be used at one of their plants. The authors’ results revealed numerous difficultiesAs a starting point, consider 5–10 trials but when in doubt, plan for more trials than you think you need, for two reasons: (1) you want to be sure that you’ve reached stable performance and (2) once you’ve reached a point of stable performance, it’s generally easier to cancel usability sessions than to schedule more. Therefore, it is essential to evaluate this outcome in different phases of system development. Static Prototypes. The activities can be planned, unplanned, or both. How To Use 'The 5 Whys' The method is extremely simple: whatever the statement, challenge or problem, you can identify the correct outcome or identify the underlying cause by asking "why?". There 5-whys process is known to be one of the best ways to come up with an empathic solution to problems because of its simple to use, reaches the root cause of a problem and helps to focus the. The materials reviewed for Eureka Math² Grades K-2 meet expectations for Alignment to the CCSSM. Establish an appropriate list of heuristics. When a design is attractive users tend to perceive it as easier to use (whether it really is or not). In fact, in released software or websites, the likelihood of encountering a problem might be closer to 10% or 5%. What is heuristic evaluation in UX design? A heuristic evaluation is a way to test whether a website is user friendly. Usability scorecards are a great way to understand how users interact with your product and identify areas that need improvement. Step 1: Start by Planning the Session. This technique was employed while the company was evolving its manufacturing methodologies in the 1930s. Backgrounds, color schemes, typefaces, and even the tone of your writing are all areas where consistency has a positive impact on usability and UX. Trying Good Old-Fashioned Testing. Some UX professionals assume that the recommendation to test with 5 users applies to interview-based studies as well. The other essential element: the tasks. 3. You can repeat this more or less than 5 times depending on. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system. Adapt While You Test. Usability testing mainly focuses on user’s ease of using application, flexibility of application to handle. Development Identifying Software Requirements Using 5 Whys and 5 Hows By Jillian Koskie April 7, 2022 Often thought to be a tool best suited for root-cause. Instantly. The above issues point toward the bigger picture of a humane digital intelligence, which does not merely incorporate human values in the innovation process, but actually brings them to the forefront, emphasizing people and their experience with technology, not just ‘intelligent functionality’ and ‘intuitive usability’. The brainchild of the five whys was inventor Sakichi Toyoda, whose son founded the Toyota Motor Corporation. Based on that, 5 users would be expected to find 85% of the usability problems available for discovery in that test iteration. I thought the system was easy to use. If it is difficult to use, it is not clear, or the information is hard to read or doesn’t answer users. A cluttered layout, hidden navigation menu, lack of color contrast, non-responsive design, and inconsistent typefaces are a few hallmarks of bad website design. Why Usability Is Important. Available for free, Atlassian’s usability testing scorecard can be downloaded here. Example of Usability Heuristic #5: Guard rails on curvy mountain roads prevent drivers from falling off cliffs. You use user research to inspire your design, to evaluate your solutions, and to measure your impact. In some instances, your team may need to keep asking more “whys. The mobile market is huge and growing at a very fast rate. Reduced Complexity Provides Clarity. Scale. 5. Here are the main topics covered: 5-Whys – A “Simple” RCA Technique. In our sample case, you would multiply 2. The formal umbrella construct of usability was defined in 1998 by the International Standard for Organisation, as follows: ‘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’ (ISO 9241-11, Citation 1998). Usability is the Key to Smooth User Experiences. Load Runner: It is a software testing tool designed by Micro Focus. Not true. ) Interactive vs. Usability Testing. Step 6: Usability Testing and Iteration. The number ‘5’ here comes from the anecdotal observation that five iterations of asking why is usually sufficient enough to. It is possible to do a storyboard without real data if you haven’t collected data yet or you want to use storyboards as a form of ideation. Stoic serenity. UI/GUI testing. If a reply email trigger is activated then check whether the sender receives the email. The scores are then normalized to provide a usability score ranging from 0 to 100. Why You Only Need to Test with 5 Users March 18, 2000 Mar 18, 2000 | Article: 5 minute min. Most studies find that users perceive the usability of a system to be better when the design is aesthetically pleasing. Make an action plan. ’ Also known as an Ishikawa Diagram, a fishbone diagram is a visual tool to explore the causes of specific events or sources of. While the participant completes each task, the researcher observes the participant’s behavior and. That’s 1 in 5 people in the audience for your product that may not be able. TThe main factors for this graphical user interface testing are-Faster access: The response time of the software must be speedy. Week 1 – Starting to create mockups; Week 2 – Applying visual design principles to mockupsShow video transcript. Instead, a structured, logically intact chain of cause and effect is formed that progressively penetrates to a problem’s root cause. Here’s a quick and easy guide to get you started: #1. Human-computer interaction (HCI) is a multidisciplinary field of study focusing on the design of computer technology and, in particular, the interaction between humans (the users) and computers. #9) Some common website testing check points: Check if the favicon is present on the tab bar. 5. This can lead to better user experiences, more consistently—creating a loyal user base, and reflecting your overall brand reputation positively. The 5 Why method is often used during the Analyze phase of the DMAIC process and the Plan phase of PDCA activities. Team member 2: Invite process manager to the next meeting. Most of the time I use Google Maps when I’m driving. The 5 Whys method assists your team focus on finding the root cause of any problem. Let’s start at the large triangle on the left-hand side of the fishbone diagram — the fish head. A good illustration of human-computer interaction is virtual reality. THE PROBLEM WITH ‘5 WHYS’ IN RCA ‘5 whys’ has been the subject of a number of caveats and critiques. the users have and which usability factors are most important. The point of reframing is not to find the “real” problem but, rather, to see if there is a better problem to solve. 6 Pluralistic inspection. The problem with ‘5 whys’ in RCA ‘5 whys’ has been the subject of a number of caveats and critiques. This research uses process methodology, which describes the refining of usability engineering process. The 5 Whys exercise is vastly improved when applied by a team and there are five basic steps to conducting it: Write down the specific problem. 1. Usability testing can be broken down into a few major steps: Identify what needs to be tested and why (e. Moving forward, start holding weekly check-ins and see what happens. If a website is not easy to use, the user is likely to leave it, resulting in a loss of business for the website owner. The 5 Whys can help you uncover root causes quickly. 56 billion and $5. About the Author. The key takeaway: Be cautious when omitting key features of an app in the name of simplicity, as it could be at the expense of its usability. Users can find the product they want in many different ways depending on their needs, their priorities and the way they use to browse. The 5 Whys method is an iterative interrogative technique pioneered at Toyota Motor Corporation in the 1930s to explore the cause-and-effect relationships underlying a specific problem. Ask open-ended and. Of course not all problems affect 31% of users. When done properly, this strategy will help you to get to the root cause of many types of issues so that it can be addressed, rather than just focusing on symptoms of that problem. Ask if there’s anything else you should iterate on. This software team uses Confluence to find the root cause of an increase in customer support calls. 2. The design improves usability with filters allowing users to customize how data is displayed and filters content using labels, categories, and KPIs. 4. Norman (former VP of research at Apple Computer). In user experience (UX) design, professional evaluators use heuristic evaluation to determine a design’s/product’s usability systematically. While initially concerned with computers, HCI has since expanded to cover almost all forms of information technology design. iOS: Interface and Usability. It involves testing the software with real users to assess its ease of use, learnability, efficiency, and overall user satisfaction. In fact, for many exploratory-research studies, 5 participants are too few. Requirement elicitation can be done by communicating with stakeholders directly or by doing some research, experiments. After a usability test, you have one final chance to ask the user questions that have yet to be covered elsewhere. Guidelines for Dropdown Design. Having an expert user experience designer conduct a usability review of your interface, you can identify usability issues. Chapter 6. Jakob Nielsen, who has studied usability since the nineties is considered one of the first and most important theorists of usability for web sites as early as 1999. It’s a helpful guideline in root cause analysis. Phase 4: post-test. An effective. 5 Whys in action . 7 Consistency inspection. 1. This lends a structured approach to help managers solve business problems. That way, you'll avoid distracting users before they’ve read the content. The most common ones are performance, scalability, portability, compatibility, reliability, availability, maintainability, security, localization, and usability. asking why 5 or more times, building each increasingly specific questions about the accident on the previous answer. When to use a fishbone diagram. 4: Information Scent. All you need to know about usability testing. Already boasting a sports and entertainment portfolio including the NBA, golf,. Find out how to visualize your five-whys analysis by putting it into a spreadsheet, including a downloadable five why template and tutorial. These qualities include performance, reliability, maintainability, usability, security, and many others. In a world overwhelmed with data, providing clear information is one of the most difficult things to accomplish. Similarly, Virzi (1992) created a model based on other usability projects, finding p between 0. There are a variety of reasons why usability tests are conducted; however, the following are the most common: Here are the main five: 1. Visual clutter. user-centered. Improving EHR usability requires significant effort among all stakeholders—vendors, physicians, other health care professionals, institutions, patients, researchers and policymakers. Usability and user experience (UX) are important concepts in the design and evaluation of products or systems intended for human use. If you want a single number, the answer is simple: test 5 users in a usability study. 6 billion; most of the costs are related to hospital admissions caused by the use of inappropriate drug therapy or the absence of appropriate drug therapy. In-test usability questions are questions directly related to your testing objective. User research, or UX research, is an absolutely vital part of the user experience design process. For instance, Minoura, one of Ohno’s successors at Toyota, highlights the potential for users to rely on off-the-cuff deduction, rather than situated observation when developing answers, as well as diffi-culty in prioritising causes. 5 Whys – Getting to the Root of a Problem Quickly ; 5 Whys (Velaction) info_outline. Non-functional requirements (NFRs) are an essential part of software engineering. Android vs. checks, standards, and follow-up activities. 1. Jakob Nielsen, Ph. AppLoader: This tool is specifically designed for business applications and assures to provide the best solutions for load testing. 10 The two methods have complementary strengths and weaknesses. The best results come from testing no more than 5 users and running as many small tests as you can afford. Following these 5 visual-design principles can drive engagement and increase usability. Choose your fidelity level. Analisa 5 Why dimulai dengan melakukan klarifikasi permasalahan atau menurut istilah di Toyota disebut : “memahami situasi dengan sungguh-sungguh”. 3. Step 3: Information Architecture and Wireframing. 2. Problems can range from super simple to wildly complex, so it may take you fewer or greater than five ‘whys’ to drill down to the root cause. Its main goal is to track down the exact reason that causes a given issue by asking a sequence of “Why” questions. , voice-controlled interfaces. After conducting usability tests, it is important for a designer to record what was observed, in addition to why such behavior occurred and modify the model according to the results. In 1999, Alma Whitten and Doug Tygar released a paper entitled “Why Johnny Can’t Encrypt: A Usabil-ity Evaluation of PGP 5. Most of the cloud data storage services come with an easy-to-use user interface and provide a feature of drag and drop. “Usability, fundamentally, is a matter of bringing a bit of human rights into. Specifically, electronic health record (EHR) usability has been linked to unfavorable job outcomes, including burnout and job dissatisfaction, among physicians [ 2 - 4] and advanced practice nurses. People will be less honest with feedback if they think you are the author and won’t want to hurt your feelings. For UX designers, “Interaction Design” is the axis on which our work revolves (i. #1) Reliability. In addition to keeping your navigation consistent, the overall look and feel of your site should be similar across all of your site's pages. Running usability tests on an interactive prototype can avoid the kind of 11th hour headaches that make software designers’ and developers’ blood run cold: last-minute reworks, buggy launches. ซ้ำๆ โดยคำตอบของแต่ละคำถามจะกลายเป็นใจความหลักใน. 1. article. 00, $40. The reason why I went for such a structure is to. That means usability testing needs to feature on the roadmap for release. 5–7 The annual cost of drug-related morbidity and mortality in the United States has been estimated to be between $1. This is the time to gather feedback about their impressions and opinions. Web accessibility means that websites, tools, and technologies are designed and developed so that people with disabilities can use them. One of the more common techniques in performing a root cause analysis is the 5 Whys approach. 3. Step 5 – Put that hypothesis into action. Follow guidelines and tools to choose, analyze, report, and improve typography. About the Author. Gain insight on the relative value of your product. They want to first test the usability and efficacy of the form. For Usability Testing: If you follow Jakob Nielsen’s advice: test with 5 users or less (2 users for low-fidelity prototypes) and do many iterations of testing (at least 3 rounds of testing). 4. 3 and R1. Berikut adalah penerapan kombinasi dari metode Pareto dan 5 Why dalam memecahkan masalah. Moving forward, start holding weekly check-ins and see what happens. Article. AppLoader allows for testing applications and reproducing the same user experience on all access points. But UX design is more than interaction design: it also involves user research (finding out who the users are in the first place), creating user personas (why, and under what conditions, would they use the product), performing user testing and usability testing, etc. usability. Here’s where you get to test out your hypothesis and see what effects it has. The 5 dimensions of interaction designThe 5 Whys can be used individually or as a part of the fishbone (also known as the cause and effect or Ishikawa) diagram. Traditionally, usability testing is used to achieve the following goals: 1. Donald A. If you think of the 5 Whys process as a fact-finding mission, consider the “5 Hows. In fact, MIT neuroscientists have found that the human brain can process an image in as little as 13 milliseconds. via Plerdy. Videos. Why was the box of nails wet? • There was a leak in the roof and it rained hard last night. It can involve several different methods including contextual observation, ethnographic studies, interviews, field studies, and moderated usability tests. 10 tips to make your website mobile-friendly. Good user experience is created. Based on the technique developed by Sakichi Toyoda, it takes an iterative approach to problem solving. Personas are fictional characters. Here, let’s look at the best practices of five of the most common low-fidelity prototypes: sketches, paper prototypes, Lego prototypes, wireframes and Wizard of Oz prototypes. So rather than spending a lot of time testing many participants for your study, test only a few participants that would give you more or less the same results at a lesser time. Users shouldn’t waste time on learning products. Add the problem statement. In 1954, psychologist Paul Fitts, examining the human. It is also called an Ishikawa diagram, after its creator, Kaoru Ishikawa, as well as a herringbone diagram or cause-and-effect diagram. In a competitive market, it’s important to understand what makes your solution better than the other solutions people use. To add insult to injury, the Clear Form button is positioned closer to the input fields than the Preview button, thus making it even more likely that people will hit it by mistake (and violating the additional guideline of proximity. Task Success Rate. Create a list of tasks for the participants to work through. The five whys method includes developing countermeasures that work to prevent problems from happening in the future. You need time to conduct the tests, time to analyse the results, and time to put the findings into useful practice. All those make it difficult for users to read at all. Why following basic UX guidelines is even more important on mobile than on desktop. Voice Search. It draws on theories from computer science and psychology to define problems that occur during the use of such a system. 3. 2. Therefore, 80% of the usability problems in a test could be detected with 4 or 5 participants. Nhờ phân tích 5 Why mà tìm ra được nguyên nhân trực tiếp và nguyên nhân gốc rễ, từ đó có hành động khắc phục hậu quả và hành động ngăn chặn tái diễn. 2. Raluca Budiu is Director of Research at Nielsen Norman Group, where she consults for clients from a variety of industries and presents tutorials on mobile usability, designing interfaces for multiple devices, quantitative usability methods, cognitive psychology for designers, and principles of human-computer interaction. Still, the main issue with sites with poor design is a lack of user-centricity. Consider this example. Before we begin looking at these five low-fidelity prototypes, let’s briefly talk about when you should use low-fidelity prototypes in the first place. Web Testing, or website testing is checking your web application or website for potential bugs before its made live and is accessible to general public. Unplanned activities happen randomly. 5, take the square root, and arrive at 1. If the application/ product is difficult to use. Designers aim to create interfaces which users find easy to use and pleasurable. Web accessibility encompasses all disabilities that affect access to the Web, including: auditory. By adhering to these principles, you will ensure that your experience will meet usability standards. Types of usability testing There are 2 types of testing: Formal (setup in a lab, using sophisticated tools, cost & time consuming) & Informal (meeting once a week in informal setting). The five whys concept is a way to try to find causes of potentially complex problems. Consistency. Learn UX Design, Design Thinking, User Research, Usability. 8 Activity Analysis. You can use it in troubleshooting, problem-solving, and quality. The 5 Whys have transformed from questions into a guiding philosophy throughout my exploration of pixels and wireframes. First, they conserve screen space. They are meant to identify usability problems. Payment speed:. The first step is to create a team that is familiar with the problem or issue at hand. Adopt a flexible mindset when you test your prototypes. 4. A 5 whys template helps you identify each reason why a problem occurs, to get to the root cause while keeping you on track and thinking logically. Some people think that usability is very costly and complex and that user tests should be reserved for the rare web design project with a huge budget and a lavish time schedule. Planned activities include workshops, experiments. The primary goal is to determine the root cause of a defect or a problem by successively asking the question “Why?”. Why did you get a flat tire? • You ran over nails in your garage 2. 5 Whys. We have to. Website usability is an aspect of visual design that measures how easy a website is to use by real users. . All 10 of the original guidelines are still true, but 5 mistakes are (thankfully) less commonplace than they once were; they were replaced by another 5. Though a useful tool in its own right, the 5 Whys method can be used during a Root Cause Analysis to help you quickly identify different causal factors of a problem. User testing produces more objective results, but is necessarilyFive second test - Lyssna. Risk analysis. In comparison, user experience (UX) is a broader concept – looking at the entire process even before the user interacts with the product. User testing methods applied were all think aloud (5/98, 5%). Exams are administered at Pearson VUE Testing Centers and at select HIMSS events,. 3. After all, most people are not familiar with how to provide feedback in the best way. A Theory of User Delight: Why Usability Is the Foundation for Delightful Experiences. It is the ease with which a user can interact with a website. The 5 Whys strategy is a simple, effective tool for uncovering the root of a problem. NASA-TLX. System Usability Scale (SUS) The System Usability Scale (SUS) provides a “quick and dirty”, reliable tool for measuring the usability. When done properly, this strategy will help you to get to the root cause of many types of issues so that it can be addressed, rather than just focusing on symptoms of that problem. About the Author. Ease of use is a basic concept that describes how easily users can use a product. Starting with an initial problem statement, a question beginning with ‘why’ is asked 5 times in order to zero in on the root cause. The most-frequently used methods are shown in bold. Interviews are usually one on one. Surveys on cancellation, downgrade, or churn pages. Step 6 – Adjust your strategy, if needed. ‘5 whys’ is a useful technique at any stage in the service design process, especially at the understand phase. Step 3: Plan Specific Scenarios. Usability testing allows you to learn things about user behavior, needs, and expectations upfront. This is above the nominal midpoint of 4 but is typical for 7 point scales. Step 1. 💡Pro tip: we’ve got you covered with an exit-intent survey template —try placing it on a checkout or pricing page to capture feedback before visitors leave without converting. Note that there is considerable overlap between Nielsen and Molich's heuristics and Ben Shneiderman’s 'eight golden rules'. There are many tools that allow you to improve the user experience of websites and apps, even to the level of watching videos of their mouse moving around on-screen. The CAHIMS Exam is a two-hour exam composed of 115 multiple-choice questions, 100 of which are scored. 5. Good usability depends on whether your website is available, clear, credible, learnable, and relevant to the people who actually use it.