Learn more about usability testing, including methods, real-world examples, challenges, best practices, and more for a comprehensive understanding.
OVERVIEW
Usability testing is a testing technique for evaluating the user experience of software applications by allowing real users to test the application. It is an approach to identifying issues that users may encounter when testing a web application or a mobile app and collecting feedback about enhancing its usability.
Functional testing verifies that the software aligns with its specified requirements and operates correctly, whereas usability testing concentrates on evaluating the user experience and interface.
In this tutorial, we will explore usability testing in great detail so that you have a better understanding of this. This tutorial will guide you through its various types, methodologies, strategies, key concepts, best practices, and others. So, let us start by first understanding the meaning of usability testing.
Usability testing is a method organizations use to gain direct insight into how real people interact with software applications while performing tasks based on the functionalities of the website or app. It is a qualitative research approach that helps identify usability issues and assess whether the software application is user-friendly or possesses a modern web design.
In the testing world, 'usability' denotes a quality attribute that evaluates how easy the user interface is for a given user. It enhances the performance, dependability, and satisfaction with which specific users achieve their objectives. It is instrumental in obtaining valuable insights before developing a website or app during the design phase.
Over the years, with increasing competitors, organizations have actively researched and invested in understanding usability. Design and content need to be more adequate; the engaging, intuitive, and responsive user experience of a software application, which an average person can use to achieve specific goals, has also become important. To address this user experience, usability testing is performed by the QAs, who check the user-friendliness of the software application.
The primary objectives of usability testing are to ascertain whether software applications are easy to use and to find ways to enhance interaction design. This process involves testing prototypes of software applications with real users, who provide feedback on their experience. Conducting these tests in person is essential, as it is challenging to replicate the exact conditions under which users will use the software application, such as time constraints, distractions, or environmental factors.
It provides valuable information about what users require from an interface, which can guide developers in creating a new interface. Additionally, it offers insights into user behavior while interacting with interfaces, informing future modifications to existing interfaces.
Usually, the tests consist of learnability, memorability, efficiency, satisfaction, and errors as parameters.
Note: According to ISO 9241, usability refers to the degree to which specified users can utilize a product to accomplish particular goals effectively, efficiently, and satisfactorily within a defined context..
With rapid technology growth, organizations heavily rely on their online presence to achieve their objectives. With many websites available, users have plenty of alternatives, and if a website proves challenging to navigate, they are likely to move on quickly. Therefore, it's essential to prioritize user-friendliness through usability testing.
One common mistake is delaying usability testing until the end of the development lifecycle. This oversight can lead to late detection of bugs or issues, increasing costs and project delays. Early detection allows for prompt rectification, saving time and resources.
Apart from web application testing, mobile app testing is also gaining significance, as users expect seamless performance from their apps. A user-friendly app enhances customer engagement and retention. Providing clear instructions during onboarding is crucial to prevent user frustration. Mobile app usability testing is instrumental in understanding and optimizing the user experience.
Usability testing serves three primary objectives:
Along with three primary objectives, let us look into the advantages and disadvantages below.
Advantages:
With usability testing, the tests are performed with users without prior experience; thus, the responses are fair and help to understand where the modifications are required.
Implementing usability testing results enriches the satisfactoriness and consistency of the software application.
Disadvantages:
When performing usability testing, it's helpful to consider the 5 E's; in the below section, let us learn more about these 5 E's in detail.
User experience is widely acknowledged as one of the most critical factors in the success of an online business. Consequently, it has become an indispensable practice for all organizations. It enables a deep understanding of the target audience, allowing businesses to uncover their needs, behaviors, challenges, and preferences by directly involving them in evaluating software applications. Skipping this crucial step can significantly impact your conversion rate, ultimately determining the success or failure of your business.
Here are the 5 E's of usability testing:
Example:
Online streaming OTT platforms have quickly become a favorite pastime, and you're planning to launch one soon, too. Given the complexity of OTT platforms with multiple filters and searchability tabs, it's crucial to conduct thorough usability testing to ensure optimal user experience.
For this purpose, you'll guide users through a series of tests:
These questions will serve as a guide for users during usability testing. Conduct qualitative remote testing to evaluate performance across diverse locations, devices, operating systems, and networks. Geolocating testing can provide valuable insights for online streaming OTT platforms, where content availability may vary due to geographical restrictions or licensing agreements. By assessing how the platform performs in different regions, you can ensure a natural and seamless user experience tailored to each user's location.
A team of experts with experience in user experience (UX) design and related tests is essential to conduct adequate testing. Here are the key groups involved in performing usability tests:
Note : Fix bugs, inconsistencies, and usability issues with better testing infrastructure. Try LambdaTest Now!
Now that we are familiar with what usability testing is, who does it, and what its 5Es are, let's dive deeper into the learning of usability testing by understanding how different it is from user testing in the section below.
While usability and user testing may appear similar and share a common ultimate objective, they use distinct approaches. Below, we will outline the differences to provide a comprehensive understanding of usability testing and user testing:
Aspect | Usability Testing | User Testing |
---|---|---|
Ultimate Objective | Evaluating users' needs within the context of an existing software application, even during prototype stages of development | Assessing the desirability of a specific software application for users. |
Focus | More software application-focused | Entirely user-focused |
Approach | Examines how users interact with and accomplish tasks using an existing software application | Questions about whether users want a specific software application |
Purpose | Improving the usability and functionality of an existing software application | Identifying the type of software application beneficial for users |
Observation | Evaluate user interactions and task completion with the software application | Measure user preferences and desires |
Timing | Applied to existing software applications, including those in prototype stages | Often used for new software application ideas or concepts |
Emphasis | Software application usability and functionality | Software application desirability |
Since we understood usability testing vs user testing, you might also think of accessibility testing as similar to usability testing. However, this is not true. Below are the exact differences between usability testing and accessibility testing:
Aspects | Usability Testing | Accessibility Testing |
---|---|---|
Focus | Ensures the application is easy and intuitive to use | Focuses on making the application accessible to disabled people |
Purpose | Verifies the user-friendliness of the software application | Measures the extent of accessibility that an application can provide |
Methodology | Identifies and fixes usability issues for a seamless user experience | Performed the following WCAG (Web Content Accessibility Guidelines) to analyze accessibility strategically |
Key Considerations | Focuses on flexibility, learnability, functionality, and industrial design | Emphasizes robustness, understandability, operability, and perceptibility |
User Involvement | Essential tools include Optimizely, Crazy Egg, Userlytics, Qualaroo, Usabilla, and UserFeel. | Essential tools include Google Lighthouse, Wave, Dynomapper, Accessibility Checker, and the Axe Chrome plugin |
Technical Requirements | Involves real users to test and evaluate user-friendliness | Requires reviewing website code and matching it with WCAG guidelines, with knowledge of CSS, HTML, and JavaScript |
Performing usability tests within Agile methodologies enables the timely detection of bugs or issues at every stage of the software development process. To facilitate this, creating an easy-to-understand and informative plan for usability testing is essential, ensuring the entire team knows what needs testing and why. Developing a test script that outlines the process or steps of the usability test is advisable, as it provides guidance throughout the testing process and provides better test results.
Agile usability tests often involve repetitive tasks, which can be addressed using templates such as Test Notes, Testing Plan, and Finding Table. These templates streamline the development process of software applications, making it more efficient.
Get access to all the test case templates to enhance your test planning process and effectively avoid repetitive tasks. These templates enable smoother navigation through test scenarios, ensuring comprehensive coverage and efficient execution.
It enables the evaluation of user experience for software applications based on QA metrics at various stages of the Software Development Life Cycle (SDLC). It involves collecting quantitative information on user experience, such as the number of clicks on a submit button or the average purchase time, through surveys and analytics.
Usability testing is critical to evaluate the effectiveness and user-friendliness of software applications. Below are five real-world examples highlighting the diverse applications and benefits:
An illustrative instance of usability testing is demonstrated through Zara, a renowned clothing brand. A user expressing frustration with the Zara app's shopping experience initiated usability studies to identify common challenges and enhance the interface.
Usability Test:
Guerrilla usability testing was chosen as the primary method. The researcher engaged seven regular Zara shoppers at a mall for the test.
Tasks included:
Outcomes:
The researcher gathered valuable information about users' behavior on the app. They reviewed recordings to pinpoint the application's main usability issues. Utilizing affinity mapping, they categorized problems into groups like search/filter, cart edits, picture carousel, dropdown menu, and others. The prototype underwent testing with seven additional users to ensure no usability issues remained.
The second usability study example is of Quora, a popular Q&A social network. The objectives include identifying usability issues on the Quora website, uncovering improvement opportunities, and gaining insights into user interactions with the platform.
Usability Test:
Rangga Ray Irawan conducted the test during the COVID-19 pandemic, opting for remote usability testing. Five users with diverse backgrounds participated in the testing session.
Participants were initially posed with a few pre-test questions about their use of social media, Quora, opinions, and standard demographic information. The test comprised nine tasks designed to simulate real-life scenarios of users engaging with the platform and testing its key features.
An Example Task Was:
You're a beginner in stock investing and need clarification about suitable stocks for beginners. You decide to ask questions on Quora. Demonstrate how you can ask a question on Quora. Following the test, participants were subjected to post-study interview questions.
Outcomes:
The overall success rate of the test was approximately 71%, with 45 attempts to perform tasks and 10 failures.
Uncovered usability problems included:
Researchers devised solutions to these problems, detailed in the Quora Usability Testing Case Study.
In 2016, McDonald's in the UK launched its mobile ordering app and enlisted user testing to uncover issues and evaluate the user-friendliness of their interface. SimpleUsability, a behavioral research company, managed the study.
Usability Test:
A total of 15 usability sessions were conducted, supplemented by a survey completed by 150 participants who interacted with the McDonald's app.
Outcomes:
Using the gathered information, SimpleUsability identified several notable usability issues. These included poorly designed CTAs, communication breakdowns between the app and the restaurant, and a need for more personalized options for specific orders. Recommendations were provided to enhance the application's UI.
The above examples underscore the importance of conducting usability testing during the development process to address issues and gain valuable insights. By analyzing the results and identifying potential usability challenges early on, teams can make informed decisions to improve the user experience before the software is fully built and released.
This proactive approach helps resolve issues promptly and ensures that the final product effectively meets user expectations and requirements.
Understanding how users interact with digital products is essential for optimizing their experience. Various methods assess user interactions, uncover issues, and enhance overall usability. Let's explore different types of evaluating user experience and improving product usability.
In a moderated process, a facilitator guides participants through testing, providing assistance and instructions as needed. On the other hand, in an unmoderated process, participants complete tasks independently without direct guidance from a facilitator. Below are the differences between moderated and unmoderated for better understanding.
Aspects | Moderate | Unmoderated |
---|---|---|
Facilitator Presence | Administered under human presence (on-site or virtually) | Done without direct facilitator presence, often remotely or with minimal involvement |
Interaction and Queries | The facilitator interacts with participants, answers queries, and asks follow-up questions | Queries may be addressed but lack real-time interaction, limiting the depth of insight |
Testing Environment | Typically performed in controlled environments like labs | It can occur on participants' own devices, allowing testing in real-world scenarios |
Depth of Results | Results tend to be in-depth due to real-time interaction and facilitator guidance | It may still yield comprehensive results but may lack depth of insights from real-time facilitation |
Cost and Time | It may be more expensive and time-consuming due to facilitator involvement and specialized environments | Generally more cost-effective and faster due to reduced facilitator involvement and fewer resource requirements |
Participant Recruitment | Participants are usually selected through direct interaction or facilitator recruitment. | Participants may be recruited using third-party software or platforms without direct facilitator interaction. |
Remote testing conducts usability evaluations remotely, typically through online platforms or software, while in-person testing involves in-person assessments in a physical location. Below are the differences between remote and in-person for better understanding.
Aspects | Remote | In-person |
---|---|---|
Control over the test environment | Can't control the test environment, as participants test remotely | Can control the test environment in a controlled setting |
Website Accessibility | Participants access and analyze the website remotely | Tests locally hosted websites, which may not be accessible to participants' devices |
Scalability | Allows for a large number of tests to be conducted simultaneously | Conducting tests in large numbers can be expensive and logistically challenging |
Geographical Coverage | Enables checking websites across multiple geographical locations | Restriction to testing at a specific site |
Device Familiarity | Tests run on participants' familiar devices, allowing freedom to explore | Participants may face restrictions in exploring due to unfamiliar devices |
Technical Glitches | Technical glitches can occur during remote testing | If technical glitches arise, the device can be changed quickly in-person |
Qualitative research or analysis focuses on understanding experiences, behaviors, and phenomena through subjective interpretations rather than numerical measurements. Quantitative research or analysis focuses on measuring and analyzing numerical data to draw objective conclusions and make statistical inferences. Below are the differences between qualitative and quantitative for better understanding.
Aspects | Qualitative | Quantitative |
---|---|---|
Focus | Gathers insights, opinions, and subjective feedback | Gathers numerical data and objective metrics |
Methods | Utilizes interviews, observations, and open-ended surveys | Utilizes task completion rates, error rates, time on task, etc. |
Emphasis | Emphasizes understanding the "why" behind user behavior | Emphasizes statistical analysis and data-driven decision-making |
Insights | Provides detailed insights into user perceptions and attitudes | Provides precise measurements of usability metrics |
Example | Understanding user preferences through in-depth interviews | Measuring task completion rates and error rates during usability testing |
Several usability testing methods are designed to indicate behavioral or attitudinal insights, and many can uncover both findings. Letâs discuss some of the popular usability testing techniques:
In performance testing, users engage in tasks using the system, often using a combination of methods and approaches. It includes user interviews, observation of interactions, and gaining insights post-experience. Depending on the chosen approach, observations, notes, and usability testing questions may be administered before, after, or during the session.
This testing provides valuable qualitative insights, requiring careful planning before initiation. Moderating a performance test can be approached in four ways, each demanding careful consideration.
Card sorting is a method used to evaluate the usability of information architecture. Users receive either blank cards (open card sorting) or cards labeled with names and brief descriptions of primary items/sections (closed card sorting). Their task is to organize the cards based on perceived connections between items. Additionally, users may be prompted to categorize cards into larger groups and assign names to these groups.
This technique aligns the information architecture with users' thought processes rather than structuring a site or app according to a designer's understanding. Implemented early in the design phase, card sorting proves beneficial, offering cost-effectiveness and avoiding the need for later structural adjustments, thus saving time and resources.
Tree testing is a follow-up to card sorting, yet it can be performed independently. In tree testing, a visual information hierarchy, or "tree," is created, and users are instructed to complete a task using this hierarchy. For instance, users might be asked, "To achieve X with this product, where would you navigate?" The goal is to observe how easily users can locate their desired information.
This technique is valuable early in the design process and can be executed with paper prototypes, spreadsheets, or digitally using tools like TreeJack.
In the 5-second test, users are exposed to a specific section of the software application (typically the top half of a screen) for five seconds. Subsequently, they are interviewed to gather their thoughts regarding the software application's purpose, main features, intended audience, brand trustworthiness, and perceptions of usability and design.
This test can be executed in person or remotely using tools such as UsabilityHub.
While eye tracking may seem relatively recent, it has been used for a while, with advancements in tools and technology. Eye tracking alone doesn't determine usability but complements other usability testing measures.
In eye tracking, the focus is monitoring where users' eyes land on the designed screen. The significance lies in ensuring that elements drawing users' attention convey crucial information. Although challenging to perform analogously, numerous tools like CrazyEgg and HotJar simplify the process.
Now that we are familiar with usability methods, let's delve into the tools that can help us enhance the testing process for usability.
Usability is an area of expertise for UX/UI designers and developers as the team collects necessary details about the website's usability using various methods.
Usability testing is crucial in ensuring a product meets user needs and expectations. It involves evaluating a product by testing it with representative users to uncover usability issues and gather feedback. Here are the different phases involved while performing usability testing:
Moderators should follow the same document in each user session to ensure consistency and impartiality. Decide on the usability testing method, whether lab testing (in-person at your offices) or remote testing (where participants can log in from anywhere). Choose the style that aligns best with your goals and objectives.
For example, refrain from asking questions like "Do you like the flow of subcategories?" Instead, focus on observing participants' natural reactions. Before the final tests, run a dry run to ensure everything is set up correctly. During the tests, avoid seeking feedback and instead focus on observing participants' responses.
Now that we have a better understanding of usability testing, its types, tools, methods, strategies, and process, let us delve further into usability testing tools.
In this section, we'll explore various software and resources used to assess the effectiveness and user-friendliness of digital interfaces. The following are some of the most popular usability testing tools that streamline the process of remote testing. Choose the one that best fits your requirements.
LambdaTest is an AI-powered test orchestration and execution platform that lets you run manual and automated tests at scale with over 3000+ real devices, browsers, and OS combinations. It enables team collaboration without regard to time zone differences, offering a centralized area for testing activities.
This platform has a convenient feature that allows it to record tests and generate detailed test results. It allows for easy tracking of the testing process and enables easy sharing of results among team members. Leveraging LambdaTest for usability testing proves to be cost-effective by eliminating the need for an in-house lab and reducing operational costs.
Through the utilization of LambdaTest, teams can improve their remote testing capabilities, streamline collaboration, and ensure a testing process that is both efficient and effective.
Based on your requirements, you can also use the LambdaTest platform to test mobile apps on cloud-based Android Emulators and iOS Simulators.
You can subscribe to the LambdaTest YouTube Channel and stay updated with the latest Selenium testing, Cypress testing, Playwright testing, and more tutorials.
This innovative, easy-to-use tool allows you to track your customers' scroll and click behavior on your website or mobile app. It provides features like User Recordings, A/B testing, and Heatmaps. With filters, you can easily understand detailed customer segments & use cases, while the recording will help you learn an individual's journey through your website. Evaluate how they engage with your site, experience it the user's way, and discover the shortcomings where they get stuck.
It is a reliable remote usability testing tool, handy when you have your pool of testers. It provides both moderated and unmoderated usability tests, along with interview features. Lookback allows you to track users' interactions with your website effortlessly.
The tool supports note-taking on participant actions and enables direct insights recording within the app. Lookback promotes team collaboration by allowing researchers to invite others from the product team to observe the test, leave comments, and tag colleagues on an internal hub without interrupting the participant's progress.
It is a UX research solution designed for larger enterprises. It analyzes and enhances your website's UX, helping create software applications that resonate with users. UserZoom offers moderated and unmoderated usability testing options, featuring surveys, card sorting, tree testing, and click testing.
It is another noteworthy online tool that facilitates website usability testing, A/B testing, and prototype testing. It leverages GPT-4 for AI-powered summaries, audio transcripts, and reports. It allows your team to blend tasks and questions in tests for quantitative and qualitative results. Additionally, it provides various video, audio, and screen recording features, making it suitable for unmoderated usability testing. Loop11 also offers a participant pool for recruitment.
It is a comprehensive platform offering diverse remote usability testing services and solutions. They present specialized packages with customized tools for UX and product designers, marketers, executives, and design teams. Depending on the chosen tier or package, features may include mobile and website testing, prototype testing, integration and collaboration tools, card sorting, tree testing, etc.
This tool is known for its extensive and unique features that allow users to dig deep into test response data based on details about each participant in every study. Its advanced feature can help set tests up in minutes, and results can be concluded in hours. One of its kind, it is a platform that records the webcam, audio, and screen of the user's device while also permitting an infinite number of annotations, users/admins, testers per session, highlight reels, and the number of concurrent studies.
This automated research platform is designed to help teams collect valuable insights from their users at scale. It prompts site visitors to answer surveys and helps teams understand their users in real time. It relieves teams of the burdens that come with user research. It can be deployed from mobile to web apps to use features like advanced targeting, dynamic insight reporting, sentiment analysis, and more.
One of its kind, this platform allows you to report âcrash trendsâ to help research which user actions cause your application to crash. It provides visual reports such as session replays, heatmaps, error reports, form and funnel analysis, and more to help brands see and understand the individuals behind their numbers. It allows you to build multiple dashboards for different users or departments in your organization. Apart from that, the platform records participants' behavior in detail and offers several different ways of processing that information. Users can see what participants did and how by recording a chronological breakdown of participantsâ actions within the app.
While performing usability testing, testers are expected to observe, report, and analyze the application to search for potential defects. However, they can make mistakes that can be costly and time-consuming to fix. Therefore, here are a few common usability testing mistakes you must avoid.
In the next section, we will learn how to perform usability testing on a cloud platform like LambdaTest.
There are two approaches to perform usability testing of your website.
We will perform usability tests over the LambdaTest cloud platform. However, before starting the testing process, you will need to follow the steps below:
Upon selecting browser-OS combinations, a new virtual machine will open, allowing you to test your software application for usability issues.
When performing usability testing, you have several options available from the left side of the menu. You can use Mark as Bug to capture and report any bugs you encounter to your team members. You can also utilize Record Session to document all website activities. Moreover, you can just use the browser version, operating system, and resolution using the Switch option from the same menu to simulate different environments for testing purposes.
Teams may encounter challenges that could lead to test failure. It's crucial to be aware of these challenges to address them proactively before they escalate into serious issues in the usability testing process.
In larger organizations, it's common to have a random group of individuals selected based on availability for the test. However, meaningful insights can only be gained when the user sample consists of individuals who intend to use the application. An inappropriate sample could distort the results and mislead the design direction.
Involving expert testers who are professionally testing websites or inappropriate testers may uncover fundamental usability issues. However, they may need to provide insights into the testers' perception of the content's usefulness.
To gauge the effectiveness of the site and the value derived from your research project, testers must realistically explore your site. Assigning predetermined tasks to testers may not offer a user's perspective on the site's effectiveness in meeting their goals. While you may assess their ability to complete tasks on your site, those tasks may align differently from what they genuinely want to accomplish.
Understanding users' behaviors and perspectives, which can be challenging to express, may be overlooked without adequate support from your organization. With this support, insights from testing may be addressed, and implementing changes may face significant resistance, hindering progress in improving user experience.
Stakeholders may act as subject matter experts (SMEs) while positioning themselves as end-users, leading to potential biases in decision-making. However, there's a risk of becoming too comfortable making decisions on behalf of users, assuming knowledge of their preferences. While stakeholder inputs may clarify workflow complexities, validating ideas through user testing is essential to ensure alignment with user needs and preferences.
Testing with real users allows you to compile the data needed to identify usability issues, improve the design, and ensure it's easy to use. Here are some of the best tricks and practices to adhere to when validating your software application with real users, which can help you avoid potential pitfalls and ensure a successful testing process.
Performing usability testing is a great way to discover unexpected bugs, find what is unnecessary or unused before going any further to the actual users, and get unbiased opinions from an outsider.
Often considered an expensive and time-consuming process, usability testing is a favorable process before final implementations. You might not implement at a larger scale; an internal team or close group can run tests on different prototypes, from a journey of rough ideas to fully functioning software applications. Also, by the end of the tests, always ask for recommendations (be polite & take feedback positively).
Remember to include your quality assurance team in usability testing. It gives them a fresh perspective on users, acknowledges how they operate the set, and examines ways to bridge what the software application can do. It will also profit the users as quality assurance will help them learn how to engage and use features. This infinite loop will help you make a better software application & understand what your target audience needs.
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