A great information architecture (IA) is essential for a great user experience (UX). And testing your website or app’s information architecture is necessary to get it right.

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Card sorting and tree testing are the very best UX research methods for exactly this. But the big question is always: which one should you use, and when? Very possibly you need both. Let’s find out with this quick summary.

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What is card sorting and tree testing? 🧐

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Card sorting is used to test the information architecture of a website or app. Participants group individual labels (cards) into different categories according to  criteria that makes best sense to them. Each label represents an item that needs to be categorized. The results provide deep insights to guide decisions needed to create an intuitive navigation, comprehensive labeling and content that is organized in a user-friendly way.

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Tree testing is also used to test the information architecture of a website or app. When using tree testing participants are presented with a site structure and a set of tasks they need to complete. The goal for participants is to find their way through the site and complete their task. The test shows whether the structure of your website corresponds to what users expect and how easily (or not) they can navigate and complete their tasks.

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What are the differences? 🂱 👉🌴

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Card sorting is a UX research method which helps to gather insights about your content categorization. It focuses on creating an information architecture that responds intuitively to the users’ expectations. Things like which items go best together, the best options for labeling, what categories users expect to find on each menu.

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Doing a simple card sort can give you all those pieces of information and so much more. You start understanding your user’s thoughts and expectations. Gathering enough insights and information to enable you to develop several information architecture options.

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Tree testing is a UX research method that is almost a card sort in reverse. Tree testing is used to evaluate an information architecture structure and simply allows you to see what works and what doesn’t. 

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Using tree testing will provide insights around whether your information architecture is intuitive to navigate, the labels easy to follow and ultimately if your items are categorized in a place that makes sense. Conversely it will also show where your users get lost and how.

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What method should you use? 🤷

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You’ve got this far and fine-tuning your information architecture should be a priority. An intuitive IA is an integral component of a user-friendly product. Creating a product that is usable and an experience users will come back for.

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If you are still wondering which method you should use - tree testing or card sorting. The answer is pretty simple - use both.

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Just like many great things, these methods work best together. They complement each other, allowing you to get much deeper insights and a rounded view of how your IA performs and where to make improvements than when used separately. We cover more reasons why card sorting loves tree testing in our article which dives deeper into why to use both.

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Ok, I'm using both, but which comes first? 🐓🥚

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Wanting full, rounded insights into your information architecture is great. And we know that tree testing and card sorting work well together. But is there an order you should do the testing in? It really depends on the particular context of your research - what you’re trying to achieve and your situation. 

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Tree testing is a great tool to use when you have a product that is already up and running. By running a tree test first you can quickly establish where there may be issues, or snags. Places where users get caught and need help. From there you can try and solve potential issues by moving on to a card sort. 

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Card sorting is a super useful method that can be instigated at any stage of the design process, from planning to development and beyond.  As long as there is an IA structure that can be tested again. Testing against an already existing website navigation can be informative. Or testing a reorganization of items (new or existing) can ensure the organization can align with what users expect.

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However, when you decide to implement both of the methods in your research, where possible, tree testing should come before card sorting. If you want a little more on the issue have a read of our article here.

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Check out our OptimalSort and Treejack tools - we can help you with your research and the best way forward. Wherever you might be in the process.

On the fence about card sorting and why you should be using it to improve your user experience? Let’s take a look at why you should take advantage of this powerful user research method.

Simply put, card sorting can help you discover how your users think your content should be organized and categorized. Card sorting gives you insight into how people conceptualize, group and label ideas, enabling you to make confident, informed information architecture (IA) decisions.

What is card sorting?

In a card sort, participants sort cards containing different items into groups. You can use the results to figure out how to group and label the information on your website in a way that makes the most sense to your audience. 

Using card sorting at the start of your website build means you’re able to make decisions based on data, not assumptions. Being informed at the start of your website build can mean saving a lot of time later with revisions or rebuilds. Better to build something intuitive now, than be left wondering later why parts of your website aren’t working as you expect.

When should you use card sorting?

It’s best to do card sort research when you want to answer a specific, information-related question. For example, maybe you’re adding a new range of “natural products” to your Health and Beauty site. On the other hand, you may want to redesign how information is grouped together across your entire website.

Card sorting is at its most effective when you’ve got the information and detail you need but you just need guidance on how it's best (most intuitive) to organize it.

While card sorting is typically used in the early stages of the design process, when there’s no live IA, it’s also common to use the technique to make changes to a live IA down the line. 

Card sorting: A powerful way to understand users’ mental models

Card sorting is a powerful tool to understand your users and how they make sense of information when they arrive on your website. A good rule to keep in mind is that what makes sense to you and your colleagues may not make sense to your users.

Using an online card sorting tool like OptimalSort it can be useful to check in with users to understand where they think information should sit on your website. As product ranges increase or change over time, it can also be useful to undertake card sort research when updating your website. 

Let’s take a look at how card sorting might work for an e-commerce website. 

Imagine you run a health and beauty e-commerce business with an active and successful website with a vast range of products that can be grouped in many different ways. At worst the website is clunky and hard to search, making it difficult for shoppers to find the right product, quickly. At best everything is there but it doesn’t quite answer what the user is looking for. It can be incredibly powerful to have a fuller understanding of how our website is viewed from our shoppers (rather than just internally). The goal of our website should be to showcase our products in a way that makes shopping easy, quick and even intuitive.

We are introducing a full range of natural based products that include products intended for babies, children, women and men. These products have previously  been categorized by who they are intended for. But we want to know if there is a better way that these could be made available, especially with a market shift to an increased demand in  natural based products.

By doing some card sorting with OptimalSort, we gather data from users and the pattern that our audience use to group these products. Through the data analysis we have discovered that a large majority of our users would group by natural products first and then by who the product is intended for (baby, children, women, or men). Armed with this insight (amongst others) we can use it to influence our IA. Ultimately, we end up with a far more intuitive and streamlined user experience (UX).

Three ways to use card sorting

Did you know that there are multiple ways to use OptimalSort card sorting? Let’s take a look– you may be surprised.

1. Building a new website

This is by far the biggest use-case for card sorting. When looking at building a new website or making better use of an existing one, utilizing card sorting at the research stage can be insightful and informative. Seeing your website, products and/or navigation from your end user’s perspective can enlighten, inform and assist in creating an enhanced user experience.

2. Combine card sorting and tree testing

When combined with card sorting, tree testing, with Treejack, can help you to improve your navigation and give you a fuller understanding of how your website is used. Tree testing is a technique for evaluating the findability of topics on a website. It’s also commonly known as reverse card sorting and is the perfect technique to complement card sorting. After you’ve analyzed your card sorting results and transformed them into a draft IA, you can test these insights using a tree test. Using this technique, you task users with seeking as opposed to sorting. This technique aims to replicate the experience of using a website – without visual distractions.

Unlike usability testing, tree testing only focuses on the IA of your website. It makes the process of developing an IA much faster, as you can easily make refinements and tweaks without needing to get bogged down in costly redesigns. 

3. Make collaborative design decisions

You can use OptimalSort to get your team involved and let their feedback feed your designs — logos, icons, banners, images, the list goes on. By creating a closed image sort with categories where your team can group designs based on their preferences, you can get some quick feedback to help you figure out where you should focus your efforts.

Use OptimalSort to run your first card sort

Card sorting can take place in person, or online with a tool like OptimalSort. OptimalSort gives you the flexibility to conduct moderated and unmoderated card sorts online. Now, you can collect the data you need, how and when you need it. Plus it only takes a few minutes to design and launch your study. 

Not only is OptimalSort simple to use,  but it’s backed up with the strength of powerful analysis functionality. Taking the pain of trawling screeds of information, OptimalSort pulls out useful, usable insights from your card sorting data. This allows you to quickly identify common groups at a glance with comprehensive and vibrant visualizations and use this data to support design changes and recommendations. 

What is 3D Cluster View?

Part of our OptimalSort analysis is the 3D Cluster View (3DCV). While the addition of ‘3D’ may throw off red flags of being a gimmick, it’s actually entirely appropriate. 

The 3DCV basically allows you to visualize the similarity between cards as three-dimensional spatial relationships. Each point in the 3D visualization represents one of the cards from your original sort. Cards that are closer together were more frequently sorted into the same category. Likewise, when you see 2 cards that are quite far apart, they weren’t sorted together as frequently. If you’d like to find out more take a look at OptimalSort 3DCV, we think it’s pretty clever.

Wrap Up

If you’re now interested in a card sort of your own, we obviously recommend OptimalSort (which you can get started with for free). Or you want to find out more, take a look at our Card Sorting 101.

Happy sorting!

Are your visitors really getting the most out of your website? Tree testing (or sometimes referred to as reverse card sorting) takes away the guesswork by telling you how easily, or not, people can find information on your website. Discover why Treejack is the tool of choice for website architects.

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What’s tree testing and why does it matter? 🌲 👀

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Whether you’re building a website from scratch or improving an existing website, tree testing helps you design your website architecture with confidence. How? Tools like Treejack use analysis to help assess how findable your content is for people visiting your website. 

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It helps answer burning questions  like:

• Do my labels make sense?
• Is my content grouped logically?
• Can people find what they want easily and quickly?  If not, why not?

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Treejack provides invaluable intel for any Information Architect. Why? Knowing where and why people get lost trying to find your content, gives you a much better chance of fixing the actual problem. And the more easily people can find what they’re looking for, the better their experience which is ultimately better for everyone.

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How’s tree testing work? 🌲🌳🌿

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Tree testing can be broken down into two main parts: 

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• The Tree - Your tree is essentially your site map – a text-only version of your website structure.
• The Task - Your task is the activity you ask participants to complete by clicking through your tree and choosing the information they think is right. Tools like Treejack analyse the data generated from doing the task to build a picture of how people actually navigated your content in order to try and achieve your task.  It tells you if they got it right or wrong, the path they took and the time it took them.

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Whether you’re new to tree testing or already a convert, effective tree testing using Treejack has some key steps.

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Step 1.  The ‘ Why’:  Purpose and goals of tree testing

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Ask yourself what part of your information architecture needs improvement – is it your whole website or just parts of it? Also think about your audience, they’re the ones you’re trying to improve the website for so the more you know about their needs the better. 

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Tip:  Make the most of what tree testing offers to improve your website by building it into your overall design project plan

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Step 2.  The ‘How’:   Build your tree

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You can build your tree using two main approaches: 

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• Create your tree in spreadsheet and import it into Treejack or
• Build your tree in Treejack itself, using the labels and structure of your website.

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Tip:  Your category labels are known as ‘parent nodes’. Your information labels are known as ‘child nodes’.

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Step 3. The ‘What’: Write your tasks

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The quality of your tasks will be reflected in the usefulness of your data so it’s worth making sure you create tasks that really test what you want to improve.

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Tip:  Use plain language that feels natural and try to write your tasks in a way that reflects the way people who visit your website might actually think when they are trying to find information on your site.

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Step 4.  The ‘Who’:  Recruit participants

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The quality of your data will largely depend on the quality of your participants. You want people who are as close to your target audience as possible and with the right attitude - willing and committed to being involved.

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Tip:  Consider offering some kind of incentive to participants – it shows you value their involvement.

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Step 5.  The ‘insights’: Interpret your results

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Now for the fun part – making sense of the results. Treejack presents the data from your tree testing as a series of tables and visualizations. You can download them in a spreadsheet in their raw format or customized to your needs.

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Tip:  Use the results to gain quick, practical insights you can act on right away or as a starter to dive deeper into the data.

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When should I use tree testing? ⌛

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Tree testing is useful whenever you want to find out if your website content is labelled and organised in a way that’s easy to understand.  What’s more it can be applied for any website, big (10+ levels with 10000s of labels) or small (3 levels and 22 labels) and any size in between.  Our advice for using Treejack is simply this: test big, test small, test often.

"Dear UX Agony Aunt I'm a recent graduate, and I'm interested in becoming a UI/UX designer/developer. The problem is, I don't really know where to start! Is it too much to hope for that out there in the industry, somewhere, is a pro who would be willing to mentor me? Any tips, advice, or leads?" — Nishita

Dear Nishita, Congrats on your recent graduation!  I think it’s wonderful that you’ve found what that you’re interested in — and even better that it’s UX! Girl, I bet you don't know where to start! I've been there, let me tell you. One thing I know for sure: UX is a multifaceted industry that defies strict definitions and constantly evolves. But there are plenty of ways in, and you'll have no trouble if you foster these three things: empathy, drive, and an open mind. I now humbly present 5 of my best tips for starting your career with a bang. After you read these, explore the resources I've listed, and definitely head on over to UX Mastery (a place that any Uxer can call home).

My Stunningly Amazing Five Top Tips for Starting a UX Career

That's right — do these things and you'll be on your way to a dazzling career.

Start with something you enjoy

One of my favourite things about UX the sheer number of options available to you. It's that hot, and that in demand, that YOU get to choose which piece of it you want to bite off first. I’m an industrial designer, but the user research side of things makes me so so happy, so that's what I do. It may seem daunting, impossible, or even slightly cliche to simply "Do what you love". But armed with the three essential ingredients I mentioned above — empathy, drive, and an open mind — you actually can do anything. And you must make use of UX Mastery's UX Self Assessment Sundial. Trust me — it'll help you to clarify the skills you have and what you love.

Start a two-way relationship with a mentor

A mentor is a wonderful thing to have no matter what stage you are at in your UX career. You might even find yourself with more than one — I personally have four! They each bring their own experiences and skills into the mix, and I bring mine too. And here's the great thing about mentoring — I also have four mentees of my own. Mentoring is two-way street, so think about what you could bring to the relationship as well. You might have a skill your mentor wants to learn, or they may have never mentored before and you'll be their guinea pig. You asked if someone out there would be willing to mentor you. Yes absolutely! UX people are some of the nicest people around (if I do say so myself!). We devote our time to improving the experience of others, and truthfully, we never stop interating ourselves (an ever-evolving project). How do you find a mentor? Oh, that’s easy: just ask. Seriously, it’s that simple. Reach out to people who inspire you — email, social media, and video calling mean you don't have to let a silly thing like the ocean be a barrier!

Build meaningful connections with fellow UXers

Connecting with other UX humans, both online and face-to-face, is essential. Why? Because people are the heart of UX. We also make excellent company, what with our creative intelligence and our wicked sense of humor (well, that's describing me and the people I know, anyway!) For online connections, get thee straight to the UX Mastery community — it's where I found my feet as a new UXer — where it's totally fine to out yourself as a newbie and ask those questions burning a hole in your pocket (or mind). For in-person connections, a quick google search should turn up UX events and meetups in your area — be brace and just go! You will have a great time, promise.

Use Twitter as your source of quality UX-related content

Twitter is my favourite online resource for UX articles and resources. There are just SO many potential things to read, so Twitter acts as the perfect filter. Set up a Twitter account for all your professional UX stuff (do remember that this means no tweeting about how cranky you are that your cat didn’t keep its breakfast down). Only follow the people who do the things you're interested in (so no following the Kardashians). And make an effort to not just skim read the posts and resources people share, but to absorb the content, make notes, reflect, agree or disagree, brainstorm and wrestle with the ideas, put them into practise, discuss them with people, tweet, retweet, and retweet other peoples' retweets. And whenever you stumble upon a particularly interesting or useful post, sign up for their newsletter or add them to your RSS feed.

Amplify your online presence (CVs have been kicked off their throne)

The best advice I received when starting out was to build an online presence. At the time, I was iterating my CV and asking for feedback — the traditional "How to get a job" approach we were taught as tots.My manager told me then that it’s really not about your CV — it’s more about your LinkedIn profile, and your ability to share your thoughts with others through blogging and tweeting. CVs are still useful, but things are different now. Was he right? Damn straight he was!  In addition to the professional Twitter account you’re going to set up, update your Linkedin profile and consider starting a blog (which, incidentally, is a great way to engage with the UX content you'll already be reading and tweeting about — double whammy!).

Start Here: Five websites and ten twitter accounts to follow right now

Subscribe to updates and dive into the archives of these places:

• UX Myths
• Usability Geek
• Nielsen Norman Group
• UX Matters
• Luke W

Then search for these accounts and hit 'Follow' on Twitter:

• @usabilitycounts
• @SmashingUXD
• @uxmatters
• @NNgroup
• @jmspool
• @UXBooth
• @UXAustralia
• @finduxevents
• @uxmag

Go for it Nishita — you'll do great!