August 8, 2022
4 min

Usability Testing: what, how and why?

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.

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.

What is usability testing? 🔦

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

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.

We go into the three main methods of usability testing:

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

1. Moderated or unmoderated 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.

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

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.

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

2. Research or in-person usability testing 🕵

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.

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

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.

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

3. Explorative, Assessment or comparative testing 🔍

These three usability testing methods generate different types of information:

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.

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.

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.

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

Which method is right for you? 🧐

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. 

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.

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

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

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.

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.

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. 

2. Remote, moderated assessment testing - app product development

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.

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.

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

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.

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.

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.

Wrap up 🌯

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

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.

Share this article
Author
Optimal
Workshop

Related articles

View all blog articles
Learn more
1 min read

Why user research is essential for product development

Many organizations are aware that staying relevant essential for their success. This can mean a lot of things to different organizations. What it often means is coming up with plenty of new, innovative ideas and products to keep pace with the demands and needs of the marketplace. It also means keeping up with the expectations and needs of your users, which often means  shorter and shorter product development life cycle times.  While maintaining this pace can be daunting, it can also be seen as a strength, tightening up your processes and cutting out unnecessary steps.

A vital part of developing new (or tweaking existing) products is considering the end user first. There really is no point in creating anything new if it isn’t meeting a need or filling a gap in the market. How can you make sure you are hitting the right mark? Ask your users.  We look into some of the key user research methods available to help you in your product development process.

If you want to know more about how to fit research into your product development process, take a read here.

What is user research? 👨🏻💻

User experience (UX) research, or user research as it’s commonly referred to, is an important part of the product development process. Primarily, UX research involves using different research methods to gather qualitative and quantitative data and insights about how your users interact with your product. It is an essential part of developing, building, and launching a product that truly meets the needs, desires, and requirements of your users. 

At its simplest, user research is talking to your users and understanding what they want and why. And using this to deliver what they need.

How does user research fit into the product development process? 🧩🧩

User research is an essential part of the product development process. By asking questions of your users about how your product works and what place it fills in the market, you can create a product that delivers what the market needs to those who need it. 

Without user research, you could literally be firing arrows in the dark, or at the very best, working from a very internal organizational view based on assuming that what you believe users need is what they want. With user research, you can collect qualitative and quantitative data that clearly tells you where and what users would like to see and how they would use it.

Investing in user research right at the start of the product development process can save the team and the organization heavy investment in time and money. With detailed data responses, your brand-new product can leapfrog many development hurdles, delivering a final product that users love and want to keep using. Firing arrows to hit a bullseye.

What user research methods should we use? 🥺

Qualitative ResearchMethods

Qualitative research is about exploration. It focuses on discovering things we cannot measure with numbers and typically involves getting to know users directly through interviews or observation.

Usability Testing – Observational

One of the best ways to learn about your users and how they interact with your new product is to observe them in their own environment. Watch how they accomplish tasks, the order they do things, what frustrates them, and what makes the task easier and/or more enjoyable for your subject. The data can be collated to inform the usability of your product, improving intuitive design and what resonates with your users.

Competitive Analysis

Reviewing products already on the market can be a great start to the product development process. Why are your competitors’ products successful? And how well do they behave for users? Learn from their successes, and even better, build on where they may not be performing as well and find where your product fills the gap in the market.

Quantitative Research Methods

Quantitative research is about measurement. It focuses on gathering data and then turning this data into usable statistics.

Surveys

Surveys are a popular user research method for gathering information from a wide range of people. In most cases, a survey will feature a set of questions designed to assess someone’s thoughts on a particular aspect of your new product. They’re useful for getting feedback or understanding attitudes, and you can use the learnings from your survey of a subset of users to draw conclusions about a larger population of users.

Wrap Up 🌯

Gathering information on your users during the product development process and before you invest time and money can be hugely beneficial to the entire process. Collating robust data and insights to guide the new product development and respond directly to user needs, and filling that all-important niche. Undertaking user experience research shouldn’t stop at product development but throughout each and every step of your product life cycle. If you want to find out more about UX research throughout the life cycle of your product, take a read of our article UX research for each product phase.

Learn more
1 min read

Moderated vs unmoderated research: which approach is best?

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

Put super simply, usability testing literally is testing how usable your product is for your users. If your product isn’t usable users often won’t complete their task, let alone come back for more. No one wants to lose users before they even get started. Usability testing gets under their skin and really into the how, why and what they want (and equally what they don’t).

As we have been getting used to video calling regularly and using the internet for interactions, usability testing has followed suit. Being able to access participants remotely has allowed us to diversify the participant pool by not being restricted to those that are close enough to be in-person. This has also allowed an increase in the number of participants per test, as it becomes more cost-effective to perform remote usability testing.

But if we’re remote, does this mean it can’t be moderated? No - remote testing, along with modern technology, can mean that remote testing can be facilitated and moderated. But what is the best method - moderated or unmoderated?

What is moderated remote research testing? 🙋🏻

In traditional usability testing, moderated research is done in person. With the moderator and the participant in the same physical space. This, of course, allows for conversation and observational behavioral monitoring. Meaning the moderator can note not only what the participant answers but how and even make note of the body language, surroundings, and other influencing factors. 

This has also meant that traditionally, the participant pool has been limited to those that can be available (and close enough) to make it into a facility for testing. And being in person has meant it takes time (and money) to perform these tests.

As technology has moved along and the speed of internet connections and video calling has increased, this has opened up a world of opportunities for usability testing. Allowing usability testing to be done remotely. Moderators can now set up testing remotely and ‘dial in’ to observe participants anywhere they are. And potentially even running focus groups or other testing in a group format across the internet. 

Pros:

- In-depth gathering of insights through a back-and-forth conversation and observing of the participants.

- Follow-up questions don’t underestimate the value of being available to ask questions throughout the testing. And following up in the moment.

- Observational monitoring noticing and noting the environment and how the participants are behaving, can give more insight into how or why they choose to make a decision.

- Quick remote testing can be quicker to start, find participants, and complete than in-person. This is because you only need to set up a time to connect via the internet, rather than coordinating travel times, etc.

- Location (local and/or international) Testing online removes reliance on participants being physically present for the testing. This broadens your ability to broaden the pool, and participants can be either within your country or global. 

Cons:

- Time-consuming having to be present at each test takes time. As does analyzing the data and insights generated. But remember, this is quality data.

- Limited interactions with any remote testing there is only so much you can observe or understand across the window of a computer screen. It can be difficult to have a grasp on all the factors that might be influencing your participants.

What is unmoderated remote research testing? 😵💫

In its most simple sense, unmoderated user testing removes the ‘moderated’ part of the equation. Instead of having a facilitator guide participants through the test, participants are left to complete the testing by themselves and in their own time. For the most part, everything else stays the same. 

Removing the moderator, means that there isn’t anyone to respond to queries or issues in the moment. This can either delay, influence, or even potentially force participants to not complete or maybe not be as engaged as you may like. Unmoderated research testing suits a very simple and direct type of test. With clear instructions and no room for inference. 

Pros:

- Speed and turnaround,  as there is no need to schedule meetings with each and every participant. Unmoderated usability testing is usually much faster to initiate and complete.

- Size of study (participant numbers) unmoderated usability testing allows you to collect feedback from dozens or even hundreds of users at the same time. 


- Location (local and/or international) Testing online removes reliance on participants being physically present for the testing, which broadens your participant pool.  And unmoderated testing means that it literally can be anywhere while participants complete the test in their own time.

Cons:

- Follow-up questions as your participants are working on their own and in their own time, you can’t facilitate and ask questions in the moment. You may be able to ask limited follow-up questions.

- Products need to be simple to use unmoderated testing does not allow for prototypes or any product or site that needs guidance. 

- Low participant support without the moderator any issues with the test or the product can’t be picked up immediately and could influence the output of the test.

When should you do which? 🤔

Each moderated and unmoderated remote usability testing have its use and place in user research. It really depends on the question you are asking and what you are wanting to know.

Moderated testing allows you to gather in-depth insights, follow up with questions, and engage the participants in the moment. The facilitator has the ability to guide participants to what they want to know, to dig deeper, or even ask why at certain points. This method doesn’t need as much careful setup as the participants aren’t on their own. While this is all done online, it does still allow connection and conversation. This method allows for more investigative research. Looking at why users might prefer one prototype to another. Or possibly tree testing a new website navigation to understand where they might get lost and querying why the participant made certain choices.

Unmoderated testing, on the other hand, is literally leaving the participants to it. This method needs very careful planning and explaining upfront. The test needs to be able to be set and run without a moderator. This lends itself more to wanting to know a direct answer to a query. Such as a card sort on a website to understand how your users might sort information. Or a first click to see how/where users will click on a new website.

Wrap Up 🌯

With the ability to expand our pool of participants across the globe with all of the advances (and acceptance of) technology and video calling etc, the ability to expand our understanding of users’ experiences is growing. Remote usability testing is a great option when you want to gather information from users in the real world. Depending on your query, moderated or unmoderated usability testing will suit your study. As with all user testing, being prepared and planning ahead will allow you to make the most of your test.

Learn more
1 min read

Building Trust Through Design for Financial Services

When it comes to financial services, user experience goes way beyond just making things easy to use. It’s about creating a seamless journey and establishing trust at every touchpoint. Think about it: as we rely more and more on digital banking and financial apps in our everyday lives, we need to feel absolutely confident that our personal information is safe and that the companies managing our money actually know what they're doing. Without that trust foundation, even the most competitive brands will struggle with customer adoption.

Why Trust Matters More Than Ever

The stakes are uniquely high in financial UX. Unlike other digital products where a poor experience might result in minor frustration, financial applications handle our life savings, investment portfolios, and sensitive personal data. A single misstep in design can trigger alarm bells for users, potentially leading to lost customers.

Using UX Research to Measure and Build Trust

Building high trust experiences requires deep insights into user perceptions, behaviors, and pain points. The best UX platforms can help financial companies spot trust issues and test whether their solutions actually work.

Identify Trust Issues with Tree Testing

Tree testing helps financial institutions understand how easily users can find critical information and features:

  • Test information architecture to ensure security features and privacy information are easily discoverable
  • Identify confusing terminology that may undermine user confidence
  • Compare findability metrics for trust-related content across different user segments

Optimize for Trustworthy First Impressions with First-Click Testing

First-click testing helps identify where users naturally look for visual symbols and cues that are associated with security:

  • Test where users instinctively look for security indicators like references to security certifications
  • Compare the effectiveness of different visual trust symbols (locks, shields, badges)
  • Identify the optimal placement for security messaging across key screens

Map User Journeys with Card Sorting

Card sorting helps brands understand how users organize concepts. Reducing confusion, helps your financial brand appear more trustworthy, quickly:

  • Use open card sorts to understand how users naturally categorize security and privacy features
  • Identify terminology that resonates with users' perceptions around security

Qualitative Insights Through Targeted Questions

Gathering qualitative data through strategically placed questions allows financial institutions to collect rich, timely insights about how much their customers trust their brand:

  • Ask open ended questions about trust concerns at key moments in the testing process
  • Gather specific feedback on security terminology understanding and recognition
  • Capture emotional responses to different trust indicators

What Makes a Financial Brand Look Trustworthy?

Visual Consistency and Professional Polish

When someone opens your financial app or website, they're making snap judgments about whether they can trust you with their money. It happens in milliseconds, and a lot of that decision comes down to how polished and consistent everything looks.Clean, consistent design sends that signal of stability and attention to detail that people expect when money's involved.

To achieve this, develop and rigorously apply a solid design system across all digital touchpoints including fonts, colors, button styles, and spacing, it all needs to be consistent across every page and interaction. Even small inconsistencies can make people subconsciously lose confidence.

Making Security Visible

Unlike walking into a bank where you can see the vault and security cameras, digital security happens behind the scenes. Users can't see all the protection you've built in unless you make a point of showing them.

Highlighting your security measures in ways that feel reassuring rather than overwhelming gives people that same sense of "my money is safe here" that they'd get from seeing a bank's physical security.

From a design perspective, apply this thinking to elements like:

  • Real time login notifications
  • Transaction verification steps
  • Clear encryption indicators
  • Transparent data usage explanations
  • Session timeout warnings

You can test the success of these design elements through preference testing, where you can compare different approaches to security visualization to determine which elements most effectively communicate trust without creating anxiety.

Making Complex Language Simple

Financial terminology is naturally complex, but your interface content doesn't have to be. Clear, straightforward language builds trust so it’s important to develop a content strategy that:

  • Explains unavoidable complex terms contextually
  • Replaces jargon with plain language
  • Provides proactive guidance before errors occur
  • Uses positive, confident messaging around security features

You can test your language and navigation elements by using tree testing to evaluate user understanding of different terminology, measuring success rates for finding information using different labeling options.

Create an Ongoing Trust Measurement Program

A user research platform enables financial institutions to implement ongoing trust measurement across the product lifecycle:

Establish Trust Benchmarks

Use UX research tools to establish baseline metrics for measuring user trust:

  • Findability scores for security features
  • User reported confidence ratings
  • Success rates for security related tasks
  • Terminology comprehension levels

Validate Design Updates

Before implementing changes to critical elements, use quick tests to validate designs:

  • Compare current vs. proposed designs with prototype testing
  • Measure findability improvements with tree testing
  • Evaluate usability through first-click testing

Monitor Trust Metrics Over Time

Create a dashboard of trust metrics that can be tracked regularly:

  • Task success rates for security related activities
  • Time-to-completion for verification processes
  • Confidence ratings at key security touchpoints

Cross-Functional Collaboration to Improve Trust

While UX designers can significantly impact brand credibility, remember that trust is earned across the entire customer experience:

  • Product teams ensure feature promises align with actual capabilities
  • Security teams translate complex security measures into user-friendly experiences
  • Marketing ensures brand promises align with the actual user experience
  • Customer service supports customers when trust issues arise

Trust as a Competitive Advantage

In an industry where products and services can often seem interchangeable to consumers, trust becomes a powerful differentiator. By placing trust at the center of your design philosophy and using comprehensive user research to measure and improve trust metrics, you're not just improving user experience, you're creating a foundation for lasting customer relationships in an industry where loyalty is increasingly rare.

The most successful financial institutions of the future won't necessarily be those with the most features or the slickest interfaces, but those that have earned and maintained user trust through thoughtful UX design built on a foundation of deep user research and continuous improvement.

Seeing is believing

Explore our tools and see how Optimal makes gathering insights simple, powerful, and impactful.