Knowing and understanding why and how your users use your product can be invaluable for getting to the nitty gritty of usability. Where they get stuck and where they fly through. Delving deep with probing questions into motivation or skimming over looking for issues can equally be informative.

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Usability testing can be done in several ways, each way has its benefits. Put super simply, usability testing literally is testing how useable your product is for your users. If your product isn't useable users will not stick around or very often complete their task, let alone come back for more.

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What is usability testing?

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Usability testing is a research method used to evaluate how easy something is to use by testing it with representative users.

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These tests typically involve observing a participant as they work through a series of tasks involving the product being tested. Having conducted several usability tests, you can analyze your observations to identify the most common issues.

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We go into the three main methods of usability testing:

1. Moderated and unmoderated
2. Remote or in person
3. Explorative, assessment or comparative

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1. Moderated or unmoderated usability testing

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Moderated usability testing

Moderated usability testing is done in-person or remotely by a researcher who introduces the test to participants, answers their queries, and asks follow-up questions. Often these tests are done in real time with participants and can involve other research stakeholders. Moderated testing usually produces more in-depth results thanks to the direct interaction between researchers and test participants. However, this can be expensive to organize and run.

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Top tip: Use moderated testing to investigate the reasoning behind user behavior.

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Unmoderated usability testing

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Unmoderated usability testing is done without direct supervision; likely participants are in their own homes and/or using their own devices to browse the website that is being tested. And often at their own pace.  The cost of unmoderated testing is lower, though participant answers can remain superficial and making follow-up questions can be difficult.

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Top tip: Use unmoderated testing to test a very specific question or observe and measure behavior patterns.

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2. Research or in-person usability testing

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Remote usability testing

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‍Remote usability testing is done over the internet or by phone. Allowing the participants to have the time and space to work in their own environment and at their own pace. This however doesn’t give the researcher much in the way of contextual data because you’re unable to ask questions around intention or probe deeper if the participant makes a particular decision. Remote testing doesn’t go as deep into a participant’s reasoning, but it allows you to test large numbers of people in different geographical areas using fewer resources.

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Top tip: Use remote testing when a large group of participants are needed and the questions asked can be direct and unambiguous.

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In-person usability testing

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‍In-person usability testing, as the name suggests, is done in the presence of a researcher. In-person testing does provide contextual data as researchers can observe and analyze body language and facial expressions. You’re also often able to converse with participants and find out more about why they do something. However, in-person testing can be expensive and time-consuming: you have to find a suitable space, block out a specific date, and recruit (and often pay) participants.

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Top tip: In-person testing gives researchers more time and insight into motivation for decisions.

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3. Explorative, Assessment or comparative testing

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These three usability testing methods generate different types of information:

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Explorative testing

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‍Explorative testing is open-ended. Participants are asked to brainstorm, give opinions, and express emotional impressions about ideas and concepts. The information is typically collected in the early stages of product development and helps researchers pinpoint gaps in the market, identify potential new features, and workshop new ideas.

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Assessment research

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‍Assessment research is used to test a user's satisfaction with a product and how well they are able to use it. It's used to evaluate general functionality.

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Comparative research

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‍Comparative research methods involve asking users to choose which of two solutions they prefer, and they may be used to compare a product with its competitors.

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Top tip: Depending on what research is being done, and how much qualitative or quantitative data is wanted.

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Which method is right for you?

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Whether the testing is done in-person, remote, moderated or unmoderated will depend on your purpose, what you want out of the testing, and to some extent your budget. 

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Depending on what you are testing, each of the usability testing methods we explored here can offer an answer. If you are at the development stage of a product it can be useful to conduct a usability test on the entire product. Checking the intuitive usability of your website, to ensure users can make the best decisions, quickly. Or adding, changing or upgrading a product can also be the moment to check on a specific question around usability. Planning and understanding your objectives are key to selecting the right usability testing option for your project.

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Let's take a look at a couple of examples of usability testing.

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1. Lab based, in-person moderated testing - mid-life website

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Imagine you have a website that sells sports equipment. Over time your site has become cluttered and disorganized, much like a bricks and mortar store may. You’ve noticed a drop in sales in certain areas. How do you find out what is going wrong or where users are getting lost? Having an in-person, lab (or other controlled environment), moderated usability test with users you can set tasks, watch (and record) what they do.

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The researcher can literally be standing or sitting next to the participant throughout, recording contextual information such as how they interacted with the mouse, laptop or even the seat. Watching for cues as to the comfort of the participant and asking questions about why they make decisions can provide richer insights. Maybe they wanted purple yoga pants, but couldn’t find the ‘yoga’ section which was listed under gym rather than a clothing section.

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Meaning you can look at how your stock is organised, or even investigate undertaking a card sort. This provides robust and fully rounded feedback on users behaviours, expectations and experiences. Providing data that can directly be turned into actionable directives when redeveloping the website. 

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2. Remote, moderated assessment testing - app product development

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You are looking at launching an app for parents to access for information and updates for the school. It’s still in development stage and at this point you want to know how easy the app is to use. Setting some very specific set tasks for participants to complete the app can be sent to them and they can be left to complete (or not). Providing feedback and comments around the usability.

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The next step may be to use first click testing to see how and where the interface is clicked and where participants may be spending time, or becoming lost. Whilst the feedback and data gathered from this testing can be light, it will be very direct to the questions asked. And will provide data to back up (or possibly not) what assumptions were made.

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3. Moderated, In-person, explorative testing - new product development

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You’re right at the start of the development process. The idea is new and fresh and the basics are being considered. What better way to get an understanding of what your users’ truly want than an explorative study.

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Open-ended questions with participants in a one-on-one environment (or possibly in groups) can provide rich data and insights for the development team. Imagine you have an exciting new promotional app that you are developing for a client. There are similar apps on the market but none as exciting as what your team has dreamt up. By putting it (and possibly the competitors) to participants they can give direct feedback on what they like, love and loathe.

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They can also help brainstorm ideas or better ways to make the app work, or improve the interface. All of this done, before there is money sunk in development.

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Usability testing summary: When to use each method (and why)

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Key objectives will dictate which usability testing method will deliver the answers to your questions.

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Whether it’s in-person, remote, moderated or comparative with a bit of planning you can gather data around your users very real experience of your product. Identify issues, successes and failures. Addressing your user experience with real data, and knowledge can but lead to a more intuitive product.

Usability testing is one of the best ways to measure how easy and intuitive to use something is by testing it with real people. You can read about the basics of usability testing here.

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Earlier this year, a small team within Optimal Workshop completely redesigned the company blog. More than anything, we wanted to create something that was user-friendly for our readers and would give them a reason to return. I was part of that team, and we ran numerous sessions interviewing regular readers as well as people unfamiliar with our blog. We also ran card sorts, tree tests and other studies to find out all we could about how people search for UX content. Unsurprisingly, one of the most valuable activities we did was usability testing – sitting down with representative users and watching them as they worked through a series of tasks we provided. We asked general questions like “Where would you go to find information about card sorting”, and we also observed them as they searched through our website for learning content.

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By stripping away any barriers between ourselves and our users and observing them as they navigated through our website and learning resources, as well as those of other companies, we were able to build a blog with these people’s behaviors and motivations in mind.

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Usability testing is an invaluable research method, and every user researcher should be able to run sessions effectively. Here are 5 tips for doing so, in no particular order.

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1. Clarify your goals with stakeholders

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Never go into a usability test blind. Before you ever sit down with a participant, make sure you know exactly what you want to get out of the session by writing down your research goals. This will help to keep you focused, essentially giving you a guiding light that you can refer back as you go about the various logistical tasks of your research. But you also need to take this a step further. It’s important to make sure that the people who will utilize the results of your research – your stakeholders – have an opportunity to give you their input on the goals as early as possible.

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If you’re running usability tests with the aim of creating marketing personas, for example, meet with your organization’s marketing team and figure out the types of information they need to create these personas. In some cases, it’s also helpful to clarify how you plan to gather this data, which can involve explaining some of the techniques you’re going to use.

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Lastly, find out how your stakeholders plan to use your findings. If there are a lot of objectives, organize your usability test so you ask the most important questions first. That way, if you end up going off track or you run out of time you’ll have already gathered the most important data for your stakeholders.

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2. Be flexible with your questions

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A list of pre-prepared questions will help significantly when it comes time to sit down and run your usability testing sessions. But while a list is essential, sometimes it can also pay to ‘follow your nose’ and steer the conversation in a (potentially) more fruitful direction.

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How many times have you been having a conversation with a friend over a drink or dinner, only for you both to completely lose track of time and find yourselves discussing something completely unrelated? While it’s not good practice to let your usability testing sessions get off track to this extent, you can surface some very interesting insights by paying close attention to a user’s behavior and answers during a testing session and following interesting leads.

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Ideally, and with enough practice, you’ll be able to answer your core (prepared) questions and ask a number of other questions that spring to mind during the session. This is a skill that takes time to master, however.

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3. Write a script for your sessions

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While a usability test script may sound like a fancy name for your research questions, it’s actually a document that’s much more comprehensive. If you prepare it correctly (we’ll explain how below), you’ll have a document that you can use to capture in-depth insights from your participants.

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Here are some of the key things to keep in mind when putting together your script:

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• Write a friendly introduction – It may sound obvious, but taking the time to come up with a friendly, warm introduction will get your sessions off to a much better start. The bonus of writing it down is that you’re far less likely to forget it!
• Ask to record the session – It’s important to record your session (whether through video or audio), as you’ll want to go back later and analyze any details you may have missed. This means asking for explicit permission to record participants. In addition to making them feel more comfortable, it’s just good practice to do so.
• Allocate time for the basics – Don’t dive into the complex questions first, use the first few minutes to gather basic data. This could be things like where they work and their familiarity with your organization and/or product.
• Encourage them to explain their thought process – “I’d like you to explain what you’re doing as you make your way through the task”. This simple request will give you an opportunity to ask follow-up questions that you otherwise may not have thought to ask.
• Let participants know that they’re not being tested – Whenever a participant steps into the room for a test, they’re naturally going to feel like they’re being tested. Explain that you’re testing the product, not them. It’s also helpful to let them know that there are no right or wrong answers. This is an important step if you want to keep them relaxed.

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It’s often easiest to have a document with your script printed out and ready to go for each usability test.

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4. Take advantage of software

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You’d never see a builder without a toolbox full of a useful assortment of tools. Likewise, software can make the life of a user research that much easier. The paper-based ways of recording information are still perfectly valid, but introducing custom tools can make both the logistics of user research and the actual sessions themselves much easier to manage.

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Take a tool like Calendly, for example. This is a powerful piece of scheduling software that almost completely takes over the endless back and forth of scheduling usability tests. Calendly acts as a middle man between you and your participants, allowing you to set the times you’re free to host usability tests, and then allowing participants to choose a session that suits them from these times.

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Our very own Reframer makes the task of running usability tests and analyzing insights that much easier. During your sessions, you can use Reframer to take comprehensive notes and apply tags like “positive” or “struggled” to different observations. Then, after you’ve concluded your tests, Reframer’s analysis function will help you understand wider themes that are present across your participants.

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There’s another benefit to using a tool like Reframer. Keeping all of your notes in place will mean you easily pull up data from past research sessions whenever you need to.

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5. Involve others

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Usability tests (and user interviews, for that matter) are a great opportunity to open up research to your wider organization. Whether it’s stakeholders, other members of your immediate team or even members of entirely different departments, giving them the chance to sit down with users will show them how their products are really being used. If nothing else, these sessions will help those within your organization build empathy with the people they’re building products for.

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There are quite a few ways to bring others in, such as:

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• To help you set up the research – This can be a helpful exercise for both you (the researcher) and the people you’re bringing in. Collaborate on the overarching research objectives, ask them what types of results they’d like to see and what sort of tasks they think could be used to gather these results.
• As notetakers – Having a dedicated notetaker will make your life as a researcher significantly easier. This means you’ll have someone to record any interesting observations while you focus on running the session. Just let them know what types of notes you’d like to see.
• To help you analyze the data – Once you’ve wrapped up your usability testing sessions, bring others in to help analyze the findings. There’s a good chance that an outside perspective will catch something you may miss. Also, if you’re bringing stakeholders into the analysis stage, they'll get a clearer picture of what it means and where the data came from.

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There are myriad other tips and best practices to keep in mind when usability testing, many of which we cover in our introductory page. Important considerations include taking good quality notes, carefully managing participants during the session (not giving them too much guidance) and remaining neutral throughout when answering their questions. If you feel like we’ve missed any really important points, feel free to leave a comment!

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Read more

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• Usability testing 101 – About to run your first usability test? Check out our handy 101 guide. You’ll also learn how you can use our qualitative research tool Reframer most effectively.
• What is usability testing? – Learn about the concepts of usability testing and how you can develop a plan for your own testing sessions.
• How to run fast and affordable usability tests with hard-to-reach, high-earning users – Finding the right participants for your usability tests can seem pretty tricky. Here’s how you can get the right people for your particular project.

Summary: The equipment and tools you use to run your user testing sessions can make your life a lot easier. Here’s a quick guide.

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It’s that time again. You’ve done the initial scoping, development and internal testing, and now you need to take the prototype of your new design and get some qualitative data on how it works and what needs to be improved before release. It’s time for the user testing to begin.

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But the prospect of user testing raises an important question, and it’s one that many new user researchers often deliberate over: What gear or equipment should I take with me? Well, never fear. We’re going to break down everything you need to consider in terms of equipment, from video recording through to qualitative note-taking.

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Recording: Audio, screens and video

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The ability to easily record usability tests and user interviews means that even if you miss something important during a session, you can go back later and see what you’ve missed. There are 3 types of recording to keep in mind when it comes to user research: audio, video and screen recording. Below, we’ve put together a list of how you can capture each. You shouldn’t have to buy any expensive gear – free alternatives and software you can run on your phone and laptop should suffice.

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• Audio – Forget dedicated sound recorders; recording apps for smartphones (iOS and Android) allow you to record user interviews and usability tests with ease and upload the recordings to Google Drive or your computer. Good options include Sony’s recording app for Android and the built-in Apple recording app on iOS.
• Transcription – Once you’ve created a recording, you’ll no doubt want a text copy to work with. For this, you’ll need transcription software to take the audio and turn it into text. There are companies that will make transcriptions for you, but software like Transcribe means you can carry out the process yourself.
• Screen recording – Very useful during remote usability tests, screen recording software can show you exactly how participants react to the tasks you set out for them, even if you’re not in the room. OBS Studio is a good option for both Mac and Windows users. You can also use Quicktime (free) if you’re running the test in person.
• Video – Recording your participants as they make their way through the various tasks in a usability test can provide useful reference material at the end of your testing sessions. You can refer back to specific points in a video to capture any detail you may have missed, and you can share video with stakeholders to demonstrate a point. If you don’t have access to a dedicated camera, consider mounting your smartphone on a tripod and recording that way.

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Taking (and making use of) notes

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Notetaking and qualitative user testing go hand in hand. For most user researchers, notetaking during a research session means busting out the Post-it notes and Sharpie pens, rushing to take down every observation and insight and then having to arduously transcribe these notes after the session – or spend hours in workshops trying to identify themes and patterns. This approach still has merit, as it’s often one of the best ways to get people who aren’t too familiar with user research involved in the process. With physical notes, you can gather people around a whiteboard and discuss what you’re looking at. What’s more, you can get them to engage with the material directly.

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But there are digital alternatives. Qualitative notetaking software (like our very own Reframer) means you can bring a laptop into a user interview and take down observations directly in a secure environment. Even better, you can ask someone else to sit in as your notetaker, freeing you up to focus on running the session. Then, once you’ve run your tests, you can use the software for theme and pattern analysis, instead of having to schedule yet another full day workshop.

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Scheduling your user tests

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Ah, participant scheduling. Perhaps one of the most time-consuming parts of the user testing process. Thankfully, software can drastically reduce the logistical burden.

Here are some useful pieces of software:

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Dedicated scheduling tool Calendly is one of the most popular options for participant scheduling in the UX community. It’s really hands-off, in that you basically let the tool know when you’re available, share the Calendly link with your prospective participants, and then they select a time (from your available slots) that works for them. There are also a host of other useful features that make it a popular option for researchers, like integrations and smart timezones.

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If you’re already using the Optimal Workshop platform, you can use our  survey tool Questions as a fairly robust scheduling tool. Simply set up a study and add in prospective time slots. You can then use the multi-choice field option to have people select when they’re available to attend. You can also capture other data and avoid the usual email back and forth.

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Storing your findings
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One of the biggest challenges for user researchers is effectively storing and cataloging all of the research data that they start to build up. Whether it’s video recordings of usability tests, audio recordings or even transcripts of user interviews, you need to ensure that your data is A) easily accessible after the fact, and B) stored securely to ensure you’re protecting your participants.

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Here are some things to ask yourself when you store any piece of customer or user data:

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• Who will have access to this data?
• How long do I plan to keep this data?
• Will this data be anonymized?
• If I’m keeping physical data on hand, where will it be stored?

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Don’t make the mistake of thinking user data is ‘secure enough’, whether that’s on a company server that anyone can access, or even in an unlocked filing cabinet beneath your desk. Data privacy and security should always be at the top of your list of considerations. We won’t dive into best practices for participant data protection in this article, but instead, just mention that you need to be vigilant. Wherever you end up storing information, make sure you understand who has access.

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Wrap up

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Hopefully, this guide has given you an overview of some of the tools and software you can use before you start your next user test. We’ve also got a number of other interesting articles that you can read right here on our blog.

Having a library of user research books is invaluable. Whether you’re an old hand in the field of UX research or just dipping your toes in the water, being able to reference detailed information on methods, techniques and tools will make your life much easier.

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There’s really no shortage of user research/UX reading lists online, so we wanted to do something a little different. We’ve broken our list up into sections to make finding the right book for a particular topic as easy as possible.

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General user research guides

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These books cover everything you need to know about a number of UX/user research topics. They’re great to have on your desk to refer back to – we certainly have them on the bookshelf here at Optimal Workshop.

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Observing the User Experience: A Practitioner's Guide to User Research

Mike Kuniavsky

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This book covers 13 UX research techniques in a reference format. There’s a lot of detail, making it a useful resource for people new to the field and those who just need more clarification around a certain topic. There’s also a lot of practical information that you’ll find applicable in the real world. For example, information about how to work around research budgets and tight time constraints.

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• Goodreads link

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Just Enough Research

Erika Hall

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In Just Enough Research, author Erika Hall explains that user research is something everyone can and should do. She covers several research methods, as well as things like how to identify your biases and make use of your findings. Designers are also likely to find this one quite useful, as she clearly covers the relationship between research and design.

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• Goodreads link

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Research Methods in Human-Computer Interaction

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Harry Hochheiser, Jonathan Lazar, Jinjuan Heidi Feng

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Like Observing the User Experience, this is a dense guide – but it’s another essential one. Here, experts on human-computer interaction and usability explain different qualitative and quantitative research methods in an easily understandable format. There are also plenty of real examples to help frame your thinking around the usefulness of different research methods.

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• Goodreads link

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Information architecture

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If you’re new to information architecture (IA), understanding why it’s such an important concept is a great place to start. There’s plenty of information online, but there are also several well-regarded books that make great starting points.

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Information Architecture for the World Wide Web: Designing Large-Scale Web Sites

Peter Morville, Louis Rosenfeld

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You’ll probably hear this book referred to as “the polar bear book”, just because the cover features a polar bear. But beyond featuring a nice illustration of a bear, this book clearly covers the process of creating large websites that are both easy to navigate and appealing to use. It’s a useful book for designers, information architects and user researchers.

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• Goodreads link

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How to Make Sense of Any Mess

Abby Covert

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This is a great introduction to information architecture and serves as a nice counter to the polar bear book, being much shorter and more easily digestible. Author Abby Covert explains complex concepts in a way anyone can understand and also includes a set of lessons and exercises with each chapter.

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• Goodreads link

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User interviews

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For those new to the task, the prospect of interviewing users is always daunting. That makes having a useful guide that much more of a necessity!

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Interviewing Users: How to Uncover Compelling Insights

Steve Portigal

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While interviewing users may seem like something that doesn’t require a guide, an understanding of different interview techniques can go a long way. This book is essentially a practical guide to the art of interviewing users. Author Steve Portigal covers how to build rapport with your participants and the art of immersing yourself in how other people see the world – both key skills for interviewers!

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• Goodreads link

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Usability testing

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Web usability is basically the ease of use of a website. It’s a broad topic, but there are a number of useful books that explain why it’s important and outline some of the key principles.

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Don't Make Me Think: A Common Sense Approach to Web Usability

Steve Krug

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Don’t Make Me Think is the first introduction to the world of UX and usability for many people, and for good reason – it’s a concise introduction to the topics and is easy to digest. Steve Krug explains some of the key principles of intuitive navigation and information architecture clearly and without overly technical language. In the latest edition, he’s updated the book to include mobile usability considerations.

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As a testament to just how popular this book is, it was released in 2000 and has since had 2 editions and sold 400,000 copies.

• Goodreads link

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Design

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The design–research relationship is an important one, even if it’s often misunderstood. Thankfully, authors like Don Norman and Vijay Kumar are here to explain everything.

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The Design of Everyday Things

Don Norman

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This book, by cognitive scientist and usability engineer Don Norman, explains how design is the communication between an object and its user, and how to improve this communication as a way of improving the user experience. If nothing else, this book will force you to take another look at the design of everyday objects and assess whether or not they’re truly user-friendly.

• Goodreads link

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101 Design Methods: A Structured Approach for Driving Innovation in Your Organization

Vijay Kumar

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A guidebook for innovation in the context of product development, this book approaches the subject in a slightly different way to many other books on the same subject. The focus here is that the practice of creating new products is actually a science – not an art. Vijay Kumar outlines practical methods and useful tools that researchers and designers can use to drive innovation, making this book useful for anyone involved in product development.

• Goodreads link

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See our list on Goodreads

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We've put together a list of all of the above books on Goodreads, which you can access here.

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Further reading

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For experienced practitioners and newcomers alike, user research can often seem like a minefield to navigate. It can be tricky to figure out which method to use when, whether you bring a stakeholder into your usability test (you should) and how much you should pay participants. Take a look at some of the other articles on our blog if you’d like to learn more.

Summary: Usability testing is crucial to product success, and there’s really no excuse not to do it. Here’s a quick guide to prepare you for your first usability test.

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Back in 1994, an online shopping website called Amazon launched to little fanfare. With just a handful of products, it seemed like yet another internet company destined to join the rank and file like so many others in the dot-com bubble. But Amazon had a very different path to follow. The website soon grew rapidly in scale and value, and within 5 years was a leader in online shopping. As any internet user now knows, Amazon does a whole lot more than just sell books.

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It wasn’t clever advertising that led to the massive success of Amazon (although that certainly helped), but a drive to place usability at the core of the company’s focus. According to Forbes, Amazon CEO Jeff Bezos invested 100 times more in the customer experience than advertising during Amazon’s first year of operation, meaning everything from how customers make their way through the website to how they get support from Amazon staff. Reinforcing the value of the customer experience, Nielsen Norman Group found that organizations that spend just 10% of their budgets on usability will see, on average, a 135% increase in their desired metrics.

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You can’t afford to skip over usability testing. It’s essential to give products and services the best chance of succeeding – and here’s how you get started.

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Unlike some other more exploratory user research methods, usability testing is very much focused on testing a prototype. It’s true that you can test a finished product, but it’s best practice to test prototypes as you develop them, iterate and improve, and then test again. This regular cadence of test/develop/feedback means the users’ point of view is constantly fed back to the people who need to understand it.

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We won't dive into tools and how to actually design a prototype, but the key thing is that the prototype should be informed by an understanding of the customer and how they're going to be using the product/service (e.g., generative research). Again, the best way to kick off the testing loop is to design something relatively rough and conceptual, and then test and improve before developing detailed designs.

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This leads in nicely to our next point, which is...

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What is it that you want to find out about how people use your prototype? Setting clear goals for your testing will, in turn, help you to define some clear metrics. While sometimes it’s immediately obvious what you need to test, in other cases (especially if you’re new to the idea of usability testing) it can be a bit more of a struggle. This is where it’s best to engage with those people who have a stake in the outcome of your research.

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You can also turn to your existing users. Look at how they currently use your product and use this to decide on key tasks for them to perform. Keep in mind that you want to test how a person completes a particular task – you’re not testing a particular feature. Your focus should be on how the feature supports the thing that a person is trying to do.

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Now for the part that often stumps new user researchers: figuring out metrics. It’s an understandably confusing process at first. There are a number of metrics that you can use to measure usability.

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• Time on task: The amount of time participants spend on a task before successfully completing it.
• Successful task completion: The percentage of tasks that participants successfully complete.
• Critical errors: Errors that prevent participants from completing tasks.
• Non-critical errors: Errors that do not affect a participant’s ability to complete a task.

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Here are some examples of goals (and metrics) for usability testing:

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• Goal: Does our online shopping website’s checkout process make it easy for customers to add additional products?
• Metric: Successful task completion. What percentage of users were able to complete this process?

• Goal: Is it easy for customers to contact support staff through our mobile app?
• Metric: Time on task. How long did it take participants to complete this task successfully?

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It’s best to nail down your goals and metrics before you start working on the plan for how you’ll run your usability tests. You can also use usability scales to help with this. This article from UX Collective provides a great rundown on some of the most popular metrics you can use in your testing.

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With an understanding of what you want to learn, it’s time to start putting together your testing plan. This is basically a list of the tasks you’ll give to participants in order to evaluate your prototype, as well as the script that you’ll follow to ensure you’re covering everything you need to during each testing session. Yes, even experienced user researchers bring along a script!

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For your tasks, take a look at your prototype with a specific eye towards the areas that you’d like to test. If you want to test a sign-up flow, for example, figure out the ideal path that someone should take to successfully complete this process and break it down step by step. Why is this important? Well, if you have an idea of the steps needed to complete a task, you can evaluate the prototype by seeing how users make their way through them.

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Here’s an example of what that sign-up flow could look like for a website, step by step:

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• Click ‘Register’ on the homepage, taken to the sign-up page
• Add personal details
• Click ‘Next’ at the bottom of page, taken to email opt-in page
• Click to sign up for different emails
• Click ‘Next’ at the bottom of the page, taken to account page

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Chances are, there will be a number of ways to complete your task, and it’s important to account for each of them. Don’t assume that just because you’ve designed a fancy navigation, users will head there first when tasked with finding a specific page – they may head straight down to the footer. This means your list should account for these alternative steps.

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It's always a good idea to run a pre-test with someone to make sure the tasks make sense, the script flows, and also time the session to make sure it fits in with what you planned.

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Once you’ve come up with your tasks, it’s time to move onto the script. As we mentioned above, even experienced user researchers like to have a script on hand during usability tests. Here’s an example script that you can tweak and refine for your own purposes. Over time, you’ll probably find that you develop a template that works really well for you.

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Hey [Name]. First of all, I just want to thank you for coming along to this study. Before we get started, I’d like to give you a quick overview of how everything is going to work – please let me know if you have any questions!

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The format for this session will be quite simple. I’ve got a series of tasks I’d like you to work through, and I’ll ask a few questions as we go. Before each task, I’ll give you some context around why you’d even be doing this and your goal.

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I just want you to know that we’re not testing you – we’re testing the [website/app]. There are no wrong answers. Everything you do is valuable learning for us.

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Lastly, I just want to think aloud as much as possible as you work through the tasks. For example, if you’re looking for something, say “I’m looking for X thing”. This will just help me to better evaluate how well the [website/app] is working.

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Ready to get started? Any other questions? Let’s go!

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Note: You may also want to consider mentioning asking for recording consent if you plan to record the session.

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If you’d like an alternative template, Steve Krug has one on his website here.

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Take some time to get your script to a point where you feel comfortable going through it, and then turn your attention to the tasks you’ll be running during your session.

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To start off, give a high-level explanation/story that your participant can use to get into the right frame of mind, and then add any detail about why they might be trying to complete that particular task.

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Lastly, there’s the final wrap-up/debrief. Allocate some time at the end of your session to ask for any final comments and to thank the participant for coming along.

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Having a solid script and a list of tasks is really just one part of the usability testing equation. It’s equally important to take good notes during sessions and then document these for future reference – and analysis.

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Unfortunately, it’s often a time-consuming process. To help with capturing notes effectively, it's important to use the right tool. A qualitative notetaking tool like Reframer can help you not only capture your insights all in one place, but also make it easy to analyze your data and spot themes. Also, using tags helps you to filter observations based on each tag later in analysis, to help you identify pain points and moments of delight.

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You can learn more about Reframer and the other tools on the Optimal Workshop platform here, or try them out for yourself.

Once you pull out the themes from your research, you can feed this back into the design and iterate from there. Ideally, this is a continuous loop – and it’s one of the best ways to ensure you’ve got a regular stream of customer data feeding into your product development.

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There’s no need to be afraid of the usability testing process. It’s a key link in the chain of developing usable, successful products. Sure, those first few sessions can be quite nerve wracking, but there’s a good chance your participants are going to be more anxious than you are. Plus, you’ll be bringing a script, so everything you need to say is mapped out for you.

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If you ever need a reminder of just how valuable usability testing can be, you only need to take one look at Amazon.

There’s no doubt usability is a key element of all great user experiences, how do we apply and test usability principles for a website? This article looks at usability principles in web design, how to test it, practical tips for success and a look at our remote testing tool, Treejack.

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A definition of usability for websites 🧐📖

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Web usability is defined as the extent to which a website can be used to achieve a specific task or goal by a user. It refers to the quality of the user experience and can be broken down into five key usability principles:

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• Ease of use: How easy is the website to use? How easily are users able to complete their goals and tasks? How much effort is required from the user?
• Learnability: How easily are users able to complete their goals and tasks the first time they use the website?
• Efficiency: How quickly can users perform tasks while using your website?
• User satisfaction: How satisfied are users with the experience the website provides? Is the experience a pleasant one?
• Impact of errors: Are users making errors when using the website and if so, how serious are the consequences of those errors? Is the design forgiving enough make it easy for errors to be corrected?

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Why is web usability important? 👀

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Aside from the obvious desire to improve the experience for the people who use our websites, web usability is crucial to your website’s survival. If your website is difficult to use, people will simply go somewhere else. In the cases where users do not have the option to go somewhere else, for example government services, poor web usability can lead to serious issues. How do we know if our website is well-designed? We test it with users.

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Testing usability: What are the common methods? 🖊️📖✏️📚

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There are many ways to evaluate web usability and here are the common methods:

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• Moderated usability testing: Moderated usability testing refers to testing that is conducted in-person with a participant. You might do this in a specialised usability testing lab or perhaps in the user’s contextual environment such as their home or place of business. This method allows you to test just about anything from a low fidelity paper prototype all the way up to an interactive high fidelity prototype that closely resembles the end product.
• Moderated remote usability testing: Moderated remote usability testing is very similar to the previous method but with one key difference- the facilitator and the participant/s are not in the same location. The session is still a moderated two-way conversation just over skype or via a webinar platform instead of in person. This method is particularly useful if you are short on time or unable to travel to where your users are located, e.g. overseas.
• Unmoderated remote usability testing: As the name suggests, unmoderated remote usability testing is conducted without a facilitator present. This is usually done online and provides the flexibility for your participants to complete the activity at a time that suits them. There are several remote testing tools available ( including our suite of tools ) and once a study is launched these tools take care of themselves collating the results for you and surfacing key findings using powerful visual aids.
• Guerilla testing: Guerilla testing is a powerful, quick and low cost way of obtaining user feedback on the usability of your website. Usually conducted in public spaces with large amounts of foot traffic, guerilla testing gets its name from its ‘in the wild’ nature. It is a scaled back usability testing method that usually only involves a few minutes for each test but allows you to reach large amounts of people and has very few costs associated with it.
• Heuristic evaluation: A heuristic evaluation is conducted by usability experts to assess a website against recognized usability standards and rules of thumb (heuristics). This method evaluates usability without involving the user and works best when done in conjunction with other usability testing methods eg Moderated usability testing to ensure the voice of the user is heard during the design process.
• Tree testing: Also known as a reverse card sort, tree testing is used to evaluate the findability of information on a website. This method allows you to work backwards through your information architecture and test that thinking against real world scenarios with users.
• First click testing: Research has found that 87% of users who start out on the right path from the very first click will be able to successfully complete their task while less than half ( 46%) who start down the wrong path will succeed. First click testing is used to evaluate how well a website is supporting users and also provides insights into design elements that are being noticed and those that are being ignored.
• Hallway testing: Hallway testing is a usability testing method used to gain insights from anyone nearby who is unfamiliar with your project. These might be your friends, family or the people who work in another department down the hall from you. Similar to guerilla testing but less ‘wild’. This method works best at picking up issues early in the design process before moving on to testing a more refined product with your intended audience.

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Online usability testing tool: Tree testing 🌲🌳🌿

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Tree testing is a remote usability testing tool that uses tree testing to help you discover exactly where your users are getting lost in the structure of your website. Treejack uses a simplified text-based version of your website structure removing distractions such as navigation and visual design allowing you to test the design from its most basic level.

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Like any other tree test, it uses task based scenarios and includes the opportunity to ask participants pre and post study questions that can be used to gain further insights. Tree testing is a useful tool for testing those five key usability principles mentioned earlier with powerful inbuilt features that do most of the heavy lifting for you. Tree testing records and presents the following for each task:

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• complete details of the pathways followed by each participant
• the time taken to complete each task
• first click data
• the directness of each result
• visibility on when and where participants skipped a task

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Participant paths data in our tree testing tool 🛣️

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The level of detail recorded on the pathways followed by your participants makes it easy for you to determine the ease of use, learnability, efficiency and impact of errors of your website. The time taken to complete each task and the directness of each result also provide insights in relation to those four principles and user satisfaction can be measured through the results to your pre and post survey questions.

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The first click data brings in the added benefits of first click testing and knowing when and where your participants gave up and moved on can help you identify any issues.Another thing tree testing does well is the way it brings all data for each task together into one comprehensive overview that tells you everything you need to know at a glance. Tree testing's task overview- all the key information in one placeIn addition to this, tree testing also generates comprehensive pathway maps called pietrees.

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Each junction in the pathway is a piechart showing a statistical breakdown of participant activity at that point in the site structure including details about: how many were on the right track, how many were following the incorrect path and how many turned around and went back. These beautiful diagrams tell the story of your usability testing and are useful for communicating the results to your stakeholders.

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Usability testing tips 🪄

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Here are seven practical usability testing tips to get you started:

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• Test early and often: Usability testing isn’t something that only happens at the end of the project. Start your testing as soon as possible and iterate your design based on findings. There are so many different ways to test an idea with users and you have the flexibility to scale it back to suit your needs.
• Try testing with paper prototypes: Just like there are many usability testing methods, there are also several ways to present your designs to your participant during testing. Fully functioning high fidelity prototypes are amazing but they’re not always feasible (especially if you followed the previous tip of test early and often). Paper prototypes work well for usability testing because your participant can draw on them and their own ideas- they’re also more likely to feel comfortable providing feedback on work that is less resolved! You could also use paper prototypes to form the basis for collaborative design sessions with your users by showing them your idea and asking them to redesign or design the next page/screen.
• Run a benchmarking round of testing: Test the current state of the design to understand how your users feel about it. This is especially useful if you are planning to redesign an existing product or service and will save you time in the problem identification stages.
• Bring stakeholders and clients into the testing process: Hearing how a product or service is performing direct from a user can be quite a powerful experience for a stakeholder or client. If you are running your usability testing in a lab with an observation room, invite them to attend as observers and also include them in your post session debriefs. They’ll gain feedback straight from the source and you’ll gain an extra pair of eyes and ears in the observation room. If you’re not using a lab or doing a different type of testing, try to find ways to include them as observers in some way. Also, don’t forget to remind them that as observers they will need to stay silent for the entire session beyond introducing themselves so as not to influence the participant - unless you’ve allocated time for questions.
• Make the most of available resources: Given all the usability testing options out there, there’s really no excuse for not testing a design with users. Whether it’s time, money, human resources or all of the above making it difficult for you, there’s always something you can do. Think creatively about ways to engage users in the process and consider combining elements of different methods or scaling down to something like hallway testing or guerilla testing. It is far better to have a less than perfect testing method than to not test at all.
• Never analyse your findings alone: Always analyse your usability testing results as a team or with at least one other person. Making sense of the results can be quite a big task and it is easy to miss or forget key insights. Bring the team together and affinity diagram your observations and notes after each usability testing session to ensure everything is captured. You could also use Reframer to record your observations live during each session because it does most of the analysis work for you by surfacing common themes and patterns as they emerge. Your whole team can use it too saving you time.
• Engage your stakeholders by presenting your findings in creative ways: No one reads thirty page reports anymore. Help your stakeholders and clients feel engaged and included in the process by delivering the usability testing results in an easily digestible format that has a lasting impact. You might create an A4 size one page summary, or maybe an A0 size wall poster to tell everyone in the office the story of your usability testing or you could create a short video with snippets taken from your usability testing sessions (with participant permission of course) to communicate your findings. Remember you’re also providing an experience for your clients and stakeholders so make sure your results are as usable as what you just tested.

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Related reading 🎧💌📖

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• Usability testing with Optimal Workshop
• Usability Testing: Five types of usability tests
• Usability Heuristics: How to conduct a heuristic evaluation
• Interface Usability:User Interface Design Basics