Live training: How to benchmark an existing site structure using Treejack

Usability guru Jared Spool has written extensively about the 'scent of information'. This term describes how users are always 'on the hunt' through a site, click by click, to find the content they’re looking for. Tree testing helps you deliver a strong scent by improving organisation (how you group your headings and subheadings) and labelling (what you call each of them).

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Anyone who’s seen a spy film knows there are always false scents and red herrings to lead the hero astray. And anyone who’s run a few tree tests has probably seen the same thing — headings and labels that lure participants to the wrong answer. We call these 'evil attractors'.In Part 1 of this article, we’ll look at what evil attractors are, how to spot them at the answer end of your tree, and how to fix them. In Part 2, we’ll look at how to spot them in the higher levels of your tree.

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The false scent — what it looks like in practice

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One of my favourite examples of an evil attractor comes from a tree test we ran for consumer.org.nz, a New Zealand consumer-review website (similar to Consumer Reports in the USA). Their site listed a wide range of consumer products in a tree several levels deep, and they wanted to try out a few ideas to make things easier to find as the site grew bigger.We ran the tests and got some useful answers, but we also noticed there was one particular subheading (Home > Appliances > Personal) that got clicks from participants looking for very different things — mobile phones, vacuum cleaners, home-theatre systems, and so on:

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The website intended the Personal appliance category to be for products like electric shavers and curling irons. But apparently, Personal meant many things to our participants: they also went there for 'personal' items like mobile phones and cordless drills that actually lived somewhere else.This is the false scent — the heading that attracts clicks when it shouldn’t, leading participants astray. Hence this definition: an evil attractor is a heading that draws unwanted traffic across several unrelated tasks.

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Evil attractors lead your users astray

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Attracting clicks isn’t a bad thing in itself. After all, that’s what a good heading does — it attracts clicks for the content it contains (and discourages clicks for everything else). Evil attractors, on the other hand, attract clicks for things they shouldn’t. These attractors lure users down the wrong path, and when users find themselves in the wrong place they'll either back up and try elsewhere (if they’re patient) or give up (if they’re not). Because these attractor topics are magnets for the user’s attention, they make it less likely that your user will get to the place you intended. The other evil part of these attractors is the way they hide in the shadows. Most of the time, they don’t get the lion’s share of traffic for a given task. Instead, they’ll poach 5–10% of the responses, luring away a fraction of users who might otherwise have found the right answer.

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Find evil attractors easily in your data

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The easiest attractors to spot are those at the answer end of your tree (where participants ended up for each task). If we can look across tasks for similar wrong answers, then we can see which of these might be evil attractors.In your Treejack results, the Destinations tab lets you do just that. Here’s more of the consumer.org.nz example:

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Normally, when you look at this view, you’re looking down a column for big hits and misses for a specific task. To look for evil attractors, however, you’re looking for patterns across rows. In other words, you’re looking horizontally, not vertically. If we do that here, we immediately notice the row for Personal (highlighted yellow). See all those hits along the row? Those hits indicate an attractor — steady traffic across many tasks that seem to have little in common. But remember, traffic alone is not enough. We’re looking for unwanted traffic across unrelated tasks. Do we see that here? Well, it looks like the tasks (about cameras, drills, laptops, vacuums, and so on) are not that closely related. We wouldn’t expect users to go to the same topic for each of these. And the answer they chose, Personal, certainly doesn’t seem to be the destination we intended. While we could rationalise why they chose this answer, it is definitely unwanted from an IA perspective. So yes, in this case, we seem to have caught an evil attractor red-handed. Here’s a heading that’s getting steady traffic where it shouldn’t.

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Evil attractors are usually the result of ambiguity

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It’s usually quite simple to figure out why an item in your tree is an evil attractor. In almost all cases, it’s because the item is vague or ambiguous — a word or phrase that could mean different things to different people. Look at our example above. In the context of a consumer-review site, Personal is too general to be a good heading. It could mean products you wear, or carry, or use in the bathroom, or a number of things. So, when those participants come along clutching a task, and they see Personal, a few of them think 'That looks like it might be what I’m looking for', and they go that way.Individually, those choices may be defensible, but as an information architect, are you really going to group mobile phones with vacuum cleaners? The 'personal' link between them is tenuous at best.

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Destroy evil attractors by being specific

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Just as it’s easy to see why most attractors attract, it’s usually easy to fix them. Evil attractors trade in vagueness and ambiguity, so the obvious remedy is to make those headings more concrete and specific. In the consumer-site example, we looked at the actual content under the Personal heading. It turned out to be items like shavers, curling irons, and hair dryers. A quick discussion yielded Personal care as a promising replacement — one that should deter people looking for mobile phones and jewellery and the like.In the second round of tree testing, among the other changes we made to the tree, we replaced Personal with Personal Care. A few days later, the results confirmed our thinking. Our former evil attractor was no longer luring participants away from the correct answers:

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Testing once is good, testing twice is magic

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This brings up a final point about tree testing (and about any kind of user testing, really): you need to iterate your testing —  once is not enough.The first round of testing shows you where your tree is doing well (yay!) and where it needs more work so you can make some thoughtful revisions. Be careful though. Even if the problems you found seem to have obvious solutions, you still need to make sure your revisions actually work for users, and don’t cause further problems. The good news is, it’s dead easy to run a second test, because it’s just a small revision of the first. You already have the tasks and all the other bits worked out, so it’s just a matter of making a copy in Treejack, pasting in your revised tree, and hooking up the correct answers. In an hour or two, you’re ready to pilot it again (to err is human, remember) and send it off to a fresh batch of participants.

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Two possible outcomes await.

• Your fixes are spot-on, the participants find the correct answers more frequently and easily, and your overall score climbs. You could have skipped this second test, but confirming that your changes worked is both good practice and a good feeling. It’s also something concrete to show your boss.
• Some of your fixes didn’t work, or (given the tangled nature of IA work) they worked for the problems you saw in Round 1, but now they’ve caused more problems of their own. Bad news, for sure. But better that you uncover them now in the design phase (when it takes a few days to revise and re-test) instead of further down the track when the IA has been signed off and changes become painful.

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Stay tuned for more on evil attractors

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In Part 1, we’ve covered what evil attractors are and how to spot them at the answer end of your tree: that is, evil attractors that participants chose as their destination when performing tasks. Hopefully, a future version of Treejack will be able to highlight these attractors to make your analysis that much easier.

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In Part 2, we’ll look at how to spot evil attractors in the intermediate levels of your tree, where they lure participants into a section of the site that you didn’t intend. These are harder to spot, but we’ll see if we can ferret them out.Let us know if you've caught any evil attractors red-handed in your projects.

It’s been a long day. Scratch that - it’s been a long week! Admit it. You loved every second of it.

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Twelve hour days, the mad scramble to get the prototype ready in time, the stakeholders poking their heads in occasionally, dealing with no-show participants and the excitement around the opportunity to speak to real life human beings about product or service XYZ. Your mind is exhausted but you are buzzing with ideas and processing what you just saw. You find yourself sitting in your war room with several pages of handwritten notes and with your fellow observers you start popping open individually wrapped lollies leftover from the day’s sessions. Someone starts a conversation around what their favourite flavour is and then the real fun begins. Sound familiar? Welcome to the post user testing debrief meeting.

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How do you turn those scribbled notes and everything rushing through your mind into a meaningful picture of the user experience you just witnessed? And then when you have that picture, what do you do next? Pull up a bean bag, grab another handful of those lollies we feed our participants and get comfy because I’m going to share my idiot-proof, step by step guide for turning your user testing notes into something useful.

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Let’s talk

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Get the ball rolling by holding a post session debrief meeting while it’s all still fresh your collective minds. This can be done as one meeting at the end of the day’s testing or you could have multiple quick debriefs in between testing sessions. Choose whichever options works best for you but keep in mind this needs to be done at least once and before everyone goes home and forgets everything. Get all observers and facilitators together in any meeting space that has a wall like surface that you can stick post its to - you can even use a window! And make sure you use real post its - the fake ones fall off!

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Mark your findings (Tagging)

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Before you put sharpie to post it, it’s essential to agree as a group on how you will tag your observations. Tagging the observations now will make the analysis work much easier and help you to spot patterns and themes. Colour coding the post its is by far the simplest and most effective option and how you assign the colours is entirely up to you. You could have a different colour for each participant or testing session, you could have different colours to denote participant attributes that are relevant to your study eg senior staff and junior staff, or you could use different colours to denote specific testing scenarios that were used. There’s many ways you could carve this up and there’s no right or wrong way. Just choose the option that suits you and your team best because you’re the ones who have to look at it and understand it. If you only have one colour post it eg yellow, you could colour code the pen colours you use to write on the notes or include some kind of symbol to help you track them.

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Processing the paper (Collating)

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That pile of paper is not going to process itself! Your next job as a group is to work through the task of transposing your observations to post it notes. For now, just stick them to the wall in any old way that suits you. If you’re the organising type, you could group them by screen or testing scenario. The positioning will all change further down the process, so at this stage it’s important to just keep it simple. For issues that occur repeatedly across sessions, just write them down on their own post its- doubles will be useful to see further down the track.In addition to  holding a debrief meetings, you also need to round up everything that was used to capture the testing session/s. And I mean EVERYTHING.

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Handwritten notes, typed notes, video footage and any audio recordings need to be reviewed just in case something was missed. Any handwritten notes should be typed to assist you with the completion of the report. Don’t feel that you have to wait until the testing is completed before you start typing up your notes because you will find they pile up very quickly and if your handwriting is anything like mine…. Well let’s just say my short term memory is often required to pick up the slack and even that has it’s limits. Type them up in between sessions where possible and save each session as it’s own document. I’ll often use the testing questions or scenario based tasks to structure my typed notes and I find that makes it really easy to refer back to.Now that you’ve processed all the observations, it’s time to start sorting your observations to surface behavioural patterns and make sense of it all.

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Spotting patterns and themes through affinity diagramming

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Affinity diagramming is a fantastic tool for making sense of user testing observations. In fact it’s just about my favourite way to make sense of any large mass of information. It’s an engaging and visual process that grows and evolves like a living creature taking on a life of its own. It also builds on the work you’ve just done which is a real plus!By now, testing is over and all of your observations should all be stuck to a wall somewhere. Get everyone together again as a group and step back and take it all in. Just let it sit with you for a moment before you dive in. Just let it breathe. Have you done that? Ok now as individuals working at the same time, start by grouping things that you think belong together. It’s important to just focus on the content of the labels and try to ignore the colour coded tagging at this stage, so if session one was blue post its don’t group all the blue ones together just because they’re all blue! If you get stuck, try grouping by topic or create two groups eg issues and wins and then chunk the information up from there.

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You will find that the groups will change several times over the course of the process  and that’s ok because that’s what it needs to do.While you do this, everyone else will be doing the same thing - grouping things that make sense to them.  Trust me, it’s nowhere near as chaotic as it sounds! You may start working as individuals but it won’t be long before curiosity kicks in and the room is buzzing with naturally occurring conversation.Make sure you take a step back regularly and observe what everyone else is doing and don’t be afraid to ask questions and move other people’s post its around- no one owns it! No matter how silly something may seem just put it there because it can be moved again. Have a look at where your tagged observations have ended up. Are there clusters of colour? Or is it more spread out? What that means will depend largely on how you decided to tag your findings. For example if you assigned each testing session its own colour and you have groups with lot’s of different colours in them you’ll find that the same issue was experienced by multiple people.Next, start looking at each group and see if you can break them down into smaller groups and at the same time consider the overall picture for bigger groups eg can the wall be split into say three high level groups.Remember, you can still change your groups at anytime.

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Thinning the herd (Merging)

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Once you and your team are happy with the groups, it’s time to start condensing the size of this beast. Look for doubled up findings and stack those post its on top of each other to cut the groups down- just make sure you can still see how many there were. The point of merging is to condense without losing anything so don’t remove something just because it only happened once. That one issue could be incredibly serious. Continue to evaluate and discuss as a group until you are happy. By now clear and distinct groups of your observations should have emerged and at a glance you should be able to identify the key findings from your study.

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A catastrophe or a cosmetic flaw? (Scoring)

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Scoring relates to how serious the issues are and how bad the consequences of not fixing them are. There are arguments for and against the use of scoring and it’s important to recognise that it is just one way to communicate your findings.I personally rarely use scoring systems. It’s not really something I think about when I’m analysing the observations. I rarely rank one problem or finding over another. Why? Because all data is good data and it all adds to the overall picture.I’ve always been a huge advocate for presenting the whole story and I will never diminish the significance of a finding by boosting another. That said, I do understand the perspective of those who place metrics around their findings. Other designers have told me they feel that it allows them to quantify the seriousness of each issue and help their client/designer/boss make decisions about what to do next.We’ve all got our own way of doing things, so I’ll leave it up to you to choose whether or not you score the issues. If you decide to score your findings there are a number of scoring systems you can use and if I had to choose one, I quite like Jakob Nielsen’s methodology for the simple way it takes into consideration multiple factors. Ultimately you should choose the one that suits your working style best.

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Let’s say you did decide to score the issues. Start by writing down each key finding on it’s own post it and move to a clean wall/ window. Leave your affinity diagram where it is. Divide the new wall in half: one side for wins eg findings that indicate things that tested well and the other for issues. You don’t need to score the wins but you do need to acknowledge what went well because knowing what you’re doing well is just as important as knowing where you need to improve. As a group (wow you must be getting sick of each other! Make sure you go out for air from time to time!) score the issues based on your chosen methodology.Once you have completed this entire process you will have everything you need to write a kick ass report.

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What could possibly go wrong? (and how to deal with it)

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No process is perfect and there are a few potential dramas to be aware of:

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People jumping into solution mode too early

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In the middle of the debrief meeting, someone has an epiphany. Shouts of We should move the help button! or We should make the yellow button smaller! ring out and the meeting goes off the rails.I’m not going to point fingers and blame any particular role because we’ve all done it, but it’s important to recognise that’s not why we’re sitting here. The debrief meeting is about digesting and sharing what you and the other observers just saw. Observing and facilitating user testing is a privilege. It’s a precious thing that deserves respect and if you jump into solution mode too soon, you may miss something. Keep the conversation on track by appointing a team member to facilitate the debrief meeting.

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Storage problems

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Handwritten notes taken by multiple observers over several days of testing adds up to an enormous pile of paper. Not only is it a ridiculous waste of paper but they have to be securely stored for three months following the release of the report. It’s not pretty. Typing them up can solve that issue but it comes with it’s own set of storage related hurdles. Just like the handwritten notes, they need to be stored securely. They don’t belong on SharePoint or in the share drive or any other shared storage environment that can be accessed by people outside your observer group. User testing notes are confidential and are not light reading for anyone and everyone no matter how much they complain. Store any typed notes in a limited access storage solution that only the observers have access to and if anyone who shouldn’t be reading them asks, tell them that they are confidential and the integrity of the research must be preserved and respected.

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Time issues

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Before the storage dramas begin, you have to actually pick through the mountain of paper. Not to mention the video footage, and the audio and you have to chase up that sneaky observer who disappeared when the clock struck 5. All of this takes up a lot of time. Another time related issue comes in the form of too much time passing in between testing sessions and debrief meetings. The best way to deal with both of these issues  is to be super organised and hold multiple smaller debriefs in between sessions where possible. As a group, work out your time commitments before testing begins and have a clear plan in place for when you will meet.  This will prevent everything piling up and overwhelming you at the end.

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Disagreements over scoring

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At the end of that long day/week we’re all tired and discussions around scoring the issues can get a little heated. One person’s showstopper may be another person’s mild issue. Many of the ranking systems use words as well as numbers to measure the level of severity and it’s easy to get caught up in the meaning of the words and ultimately get sidetracked from the task at hand. Be proactive and as a group set ground rules upfront for all discussions. Determine how long you’ll spend discussing an issue and what you will do in the event that agreement cannot be reached. People want to feel heard and they want to feel like their contributions are valued. Given that we are talking about an iterative process, sometimes it’s best just to write everything down to keep people happy and merge and cull the list in the next iteration. By then they’ve likely had time to reevaluate their own thinking.

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And finally...

We all have our own ways of making sense of our user testing observations and there really is no right or wrong way to go about it. The one thing I would like to reiterate is the importance of collaboration and teamwork. You cannot do this alone, so please don’t try. If you’re a UX team of one, you probably already have a trusted person that you bounce ideas off. They would be a fantastic person to do this with. How do you approach this process? What sort of challenges have you faced? Let me know in the comments below.

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