Outstanding user experience is built on principles, not guesswork.
Behind every remarkable UX is a thoughtful and structured approach. Behind every intuitive app, website, or smooth flow, that just feels right, lies a foundation of best UX practices.
But how to perfect usability and delight your users at the same time?
That’s where practical usability principles come into play. This checklist provides actionable steps for:
- Researchers
- Service designers
- UX designers
- Startup founders
- Product managers
- Business analysts
- UX writers
…and many more who are on the mission to craft products users love!
Traditional approaches, like Nielsen heuristics, have proven their worth over the years. At the same time, our practical experience from numerous projects has pointed out that many frameworks need alignment with contemporary user experience challenges by complementing and adapting them. That’s why we’ve created our original set of 8 usability heuristics, battle-tested across dozens of projects and refined to deliver maximum impact.
The Story Behind Our Approach
Our journey toward developing this unique framework began with a simple yet powerful observation during usability testing: mistakes, misclicks, and emotional friction are not just errors – they’re usability findings, which indicate confusing parts of the interface.
Inspired by Carol M. Barnum’s “Usability Testing Essentials”, we initially categorized these findings by their impact: blockers, barriers, and challenges. While insightful, this segmentation didn’t always uncover the root causes of usability issues.
To address this gap, we explored a variety of other usability principles, including Nielsen heuristics, ISO 9241–110, Interaction Design Foundation, and usability.gov. While these methods provided foundational insights, neither offered a compact framework nor an actionable approach for efficiently diagnosing and resolving underlying usability challenges.
Something was still missing in traditional frameworks. So, we took matters into our own hands. The result? A framework we genuinely believe can make a difference. It’s practical, user-focused, and built to tackle real-world usability challenges.
The killer feature? It works for both web and mobile platforms. Inspired by Nielsen heuristics which are web-focused, our principles take usability guidelines further by adopting a cross-platform approach. And while most approaches focus broadly on UX best practices, we’ve zeroed in on usability. That’s where we believe magic happens.
Here’s what makes Craft Innovations Usability Principles stand out:
✓ Platform-agnostic: covers both web and mobile platforms.
✓ Usability-centric: every principle is designed to address practical usability challenges.
✓ UX copy included: guidelines for clear, effective copy that’s often overlooked.
✓ Short and structured: no fluff, just clear steps to help you take action.
✓ Memorable: 8 easy-to-apply principles you’ll actually remember when you need them.
This isn’t just another framework. It’s one we’ve refined, tested, and used to solve modern usability problems. We’re excited to share it with you because we know – it works.
Get comfy – the journey to perfect user experience starts now!
1. Findability
Findability is at the heart of our principles, ensuring users can locate what they need without confusion.
Picture this: a user opens your app, excited to complete a task, but they’re met with a maze of confusing menus. They can’t find what they’re looking for, and eventually, they leave – taking their trust with them. Poor findability isn’t just inconvenient; it’s a dealbreaker.
That’s why Findability is a cornerstone of our usability heuristics. It ensures users always know where they are and where to go next. We break down the Findability principle into the following categories.
1.1. Clear and Logical Structure of Sections
Users should be able to easily understand how the interface is organized and quickly find what they need. Sections and menus should be arranged in a way that makes sense and is easy to follow.
Stripe’s website is a standout example of clear and logical structure of the sections. It offers a user-friendly navigation, breaking down the services according to the context of the user. This approach is perfect to help website visitors find exactly what they need without feeling lost.
Navigation menu designed around user needs
1.2. Cross-Location of Items
Cross-location means placing the same item in multiple categories or sections, so users can find it no matter how they search. What makes sense to one person may not be obvious to another. This is natural due to different social backgrounds or cognitive abilities. Therefore, users may reach their “goal” in different ways.
1.3. Smooth Navigation Back and Forth
Smooth Navigation Back and Forth ensures users can move easily between pages or steps without confusion, return to previous pages, see their navigation path, and understand the steps needed to reach their goal. These features help users feel in control of their journey.
1.4. Easy Access to Search
Easy Access to Search provides users with an easy and visible way to find what they’re looking for. A prominent search bar or button helps users locate information quickly, especially when they don’t know where to find it in the menu structure.
1.5. Supporting Information and Tips
Supporting Information helps users find what they need faster and navigate the interface more efficiently. This includes tooltips, contextual help, explanatory text, or visual cues that clarify complex processes or terms, making the experience easier and more intuitive.
1.6. Optimal User Flow Length
Optimal User Flow Length means designing processes with the right number of steps to help users reach their goals efficiently. The flow should feel smooth and straightforward, avoiding unnecessary steps that might frustrate users or cause them to abandon the task.
However, the ideal length of a user flow can vary depending on cultural and regional expectations. For example, opening a bank account in Switzerland or Germany often involves providing more detailed information and completing more steps compared to India, where the process tends to be simpler and faster. These differences arise from variations in legal requirements and documentation standards. Understanding and adapting to these contexts is key to creating a satisfying user experience.
When you design with the Findability usability principle in mind, you help users locate what they need without confusion. It is all about helping your customers complete tasks quickly and efficiently, following best UX practices.
2. Self-Descriptiveness
The Self-Descriptiveness usability principle ensures that interfaces are intuitive, self-explanatory, and require no additional guidance for users to navigate or interact with them effectively.
An interface should support users in completing their tasks effortlessly. When visual cues like buttons or icons are ambiguous, or text lacks clarity, users are left guessing – a frustrating experience. A self-descriptive interface avoids these pitfalls, making user flow clear at every step. Self-descriptiveness involves the successful implementation of Visual and Textual Clarity.
2.1 Visual Clarity
Visual Clarity ensures that all visual elements in an interface are easy to interpret and understand. This principle is further divided into Visual Literacy and Visual Hierarchy, addressing how users perceive and prioritize visual information.
2.1.1 Visual Literacy
Visual Literacy refers to the ability of users to intuitively understand how to interact with visual elements, like buttons or input fields, in an interface. Icons, images, and other visual cues should be universally recognizable and culturally appropriate, without any ambiguity or misinterpretations.
2.1.2 Visual Hierarchy
Organize interface elements in a way that guides users’ attention to the most important information first. By using size, color, contrast, spacing, and placement, designers can create a clear path for users to follow, making the interface more intuitive and reducing cognitive effort.
For instance, consider Airbnb’s approach to Visual Hierarchy. By pairing ambiguous icons, like its translation button, with a brief explanation of their meaning, the platform ensures users understand their purpose. A shining example of user experience best practices in action.
Users may misinterpret icon, so the app provides explanation
2.2 Textual Clarity and UX Copy
Textual Clarity is a usability principle that ensures UX copy is simple and informative. UX Copy is the text used in interfaces, such as headings, hints, features, error messages, buttons, and instructions etc. These elements have to clearly, concisely, and informatively provide users with the information they need in the current context. Good UX Copy is:
2.2.1 Simple and Understandable
All text in an interface should be written in plain language, avoiding jargon or too many technical, complex terms. The goal is to make it easy for users to read, understand, and act on the information. Write with the user in mind, consider their knowledge level and expectations. Use examples if needed, clarify complex ideas with simple, relatable scenarios.
2.2.2 Concise
Keep text brief and to the point. Interface text should avoid unnecessary words or information, making it easier for users to focus on what matters most. Use short sentences, deliver the message with fewer words, avoid repetition, replace long phrases with simpler alternatives and prioritize action-oriented language; get straight to the task or purpose.
2.2.3 Relevant to the Context
Align text with the user’s current situation, role, needs, and goals. The language and information should fit the task at hand, providing value. A best practice is to focus on what the user is trying to achieve at that moment.
2.2.4 Human and with a Positive Emotional Charge
Make UX copy feel friendly, approachable, and encouraging. This usability principle ensures the language resonates with users emotionally, fostering trust and a positive experience. Use a conversational tone and express empathy, frame messages positively, avoid blame in error messages, and celebrate user success.
Summing up guidelines above, the Self-Descriptiveness principle removes unnecessary guesswork for users. Clear visuals and well-crafted text not only improve usability but also makes users feel supported and confident as they navigate through the interface.
3. Controllability
The Controllability principle in UX design principles states that users should feel they are in control of the system, rather than the system controlling them. This means the interface should allow users to initiate and complete actions, cancel or redo them, and correct mistakes as needed.
Unlike most usability heuristics, which often overlook error management or treat it superficially, our principles integrate error prevention, comprehensive messaging, and easy correction into the core of the Controllability. Achieving controllability requires implementation of both: Control and Freedom of Action and Error Management.
3.1 Control and Freedom of Action
Users should feel free in their interactions with the system. This principle emphasizes flexibility, allowing users to navigate and perform tasks on their terms.
3.1.1 Users Initiate Actions
Users should have full control over initiating actions within the interface rather than just reacting to system behaviors. Actions should only be triggered by the user, not automatically by the system, ensuring they feel in charge of their experience and can proceed at their own pace. For instance, a button should only become active when the user clicks it, rather than being triggered automatically by the system.
After placing order, limited time to verify order details which reduces the feeling of freedom and action control
3.1.2 Information Necessary for Performing Actions
For complex contexts, it is essential to provide information that gives a user an understanding and helps them perform actions comprehensively in the correct order. A best practice is to provide clear, relevant, and timely information that helps users understand what to do, how to do it, and what to expect, reducing errors and enhancing their sense of control.
3.1.3 Maximum Freedom and Flexibility of Actions
Users should be able perform tasks in a way that suits their needs and preferences. This heuristic includes offering customizable options, adaptable workflows, and multiple paths to complete actions in a way that fits users’ needs.
3.2 Error Management
Error Management is all about minimizing user mistakes and ensuring they can recover easily when errors occur. It encompasses three key aspects: error prevention, comprehensive error messages, and easy error correction.
3.2.1 Error Prevention
User interfaces should be designed to proactively prevent user mistakes. This includes providing clear instructions, input constraints, and visual cues to guide users, as well as implementing features like real-time validation and input masks. It should also offer confirmation prompts before executing irreversible actions, ensuring users are fully aware of the consequences. By anticipating potential errors, this usability principle helps users complete tasks accurately and confidently.
3.2.2 Comprehensive Error Messages
Provide users with clear, detailed, and actionable information when something goes wrong. Error messages should explain the issue, identify its cause, and guide users on how to resolve it. This principle aims to avoid deadlocks, reduce users’ frustration and help them recover quickly.
3.2.3 Easy Error Correction
Users should be able to quickly and efficiently fix mistakes without losing progress. Interfaces should provide clear guidance on how to resolve errors, maintain previously entered data when possible, and allow users to retry or undo actions.
For example, consider the National Geographic Kids website. When an underage user tries to access restricted content, the site simply blocks access without explaining why. A better approach is to provide a clear message, such as: “This feature is for adults only. Please ask a parent or guardian for help”.
No clear guidance for underage users
4. User Engagement
The User Engagement in UX best practices refers to a system’s ability to not only perform its functions but also encourage users to interact, building a lasting connection between a brand and its customers. A good user experience goes beyond usability; it motivates and captivates users, fostering long-term loyalty. The User Engagement principle includes engaging start to interaction, accelerators, personalization and gamification, positive intent, contextual relevance and ethics, and encouraging further user interaction.
4.1 Engaging Start to Interaction
Create a positive first impression and make the initial user experience smooth and intuitive. Simple tasks, clear instructions, and a thoughtful onboarding process relevant to the user’s context will encourage continued engagement.
For instance, the app Slack uses tooltips to onboard users and guide them through features they need to learn. This creates a smooth and positive onboarding experience, engaging users right from the start. Similarly, apps like Duolingo add gamification, motivate users with rewards and milestones to make the experience more fun and enjoyable. These examples perfectly demonstrate usability heuristics applied right.
Tooltip guides users to features they need to know during the onboarding process
4.2 Accelerators
Accelerators are features designed to speed up interactions and make tasks more efficient for users. These include shortcuts, auto-complete, pre-filled fields, and predefined layouts or templates that reduce repetitive actions and help users achieve their goals faster.
4.3 Personalization and Gamification
Personalization adapts content and features to suit the user’s unique needs, while gamification uses rewards, achievements, and challenges to motivate and create a more enjoyable experience. Together, they make the user interaction more relevant, engaging, and satisfying.
4.4 Positive Intent
Build a friendly, supportive, and encouraging environment for users. This involves using a tone of voice and messaging that conveys empathy, builds trust, and fosters a positive emotional connection. Even in challenging situations, such as errors, the interface should reassure users and guide them constructively.
4.5 Contextual Relevance and Ethics
User interactions should be meaningful and appropriate to the situation. Content and features should align with the user’s current needs, avoiding unnecessary distractions or manipulative tactics. Ethical design principles prioritize transparency, respect for user autonomy, and the responsible use of engagement techniques.
4.6 Encouraging Further Interaction
Implement strategies to encourage users to continue engaging with the system.Showcase new features, recommend relevant content or actions based on user interests, and provide incentives or opportunities for deeper exploration. The best UX practice is to maintain healthy interest and foster a lasting connection with the product.
The User Engagement usability principle helps to create systems that not only function well but also keep users coming back for more. By following these UX guidelines and integrating user interaction design principles, you are set to build a product that captivates and retains its audience.
5. Internal Consistency
The Internal Consistency is a core usability principle that ensures a uniform user experience across all interactions within a product. It means maintaining consistency in how terms, design elements, and behaviors are presented throughout the interface, making the system predictable and intuitive. Internal Consistency is reflected in the following aspects:
5.1 Entity Naming
Ensure that terminology remains consistent and uniform throughout the interface. Use the same labels, categories, and terms across all sections to prevent confusion and help users quickly navigate the system. Consistency builds familiarity and reinforces a positive user experience.
5.2 Interface Structure
Organize similar functions and elements in the same way throughout the interface. Ensure that layouts, navigation, and placement of key features are consistent to help users predict and understand where to find information or actions. For example, similar functions should always be placed in the same location and behave the same way. An anti-example would be a back arrow in the top-left corner pointing left on one screen and pointing down on another.
5.3 Visual Design of Elements
Use a uniform style for components that serve the same purpose across the interface. Ensure that buttons, icons, and other visual elements have a consistent appearance in terms of size, color, shape, and typography. Inconsistencies, such as varying button styles or font properties for similar actions, can confuse users and disrupt predictability.
For example, Google’s suite of products like Gmail, Drive, and Calendar showcases exceptional internal consistency for user interaction – all because the design language across these tools remains uniform.
In contrast, the Ryanair app uses different button styles on various screens, which disrupts the predictability of the interface and goes against key UX design principles.
Different, inconsistent button styles on various screens
5.4 Interface Behavior
Make sure that interface elements respond predictably to user actions. Similar actions should have consistent responses, including uniform reaction times, animations, and sequences. Inconsistencies, such as hover effects working on some buttons but not others, can confuse users and diminish trust in the system.
5.5 Communication Style with Users
Maintain a uniform tone, vocabulary, and emotional approach across all user interactions. Whether through error messages, notifications, or instructions, the style should align with the overall brand’s tone of voice. Moreover, consistent communication reinforces brand identity.
Following internal consistency guidelines makes your product predictable, reliable, and easy to use. It helps users feel comfortable with your product at all times.
6. External Standards
Users bring expectations to your interface based on their experience with other products. The External Standards principle in usability heuristics is about aligning with these established patterns to create a more intuitive experience. By following familiar practices, you reduce user confusion and improve overall usability.
6.1 Common Interface Patterns
Buttons, input fields, and navigation menus should look and function in ways users already recognize. A shopping cart icon should always lead to the cart, or a search bar should appear prominently at the top of the screen. When these familiar patterns are disrupted, users feel lost.
For example, website Allrecipes.com hides the primary navigation behind a menu icon. However, instead of the menu pulling out from the left when clicked, as is typical with this convention, it is displayed in a modal. On desktop, modals are commonly associated with newsletter signups and special offers; therefore, users might immediately dismiss it without realizing that they must use the modal to navigate to their desired content. On the other hand, when designs align with best UX practices, users feel capable and satisfied.
Primary navigation is hidden behind a hamburger menu on desktop. Instead of a common sidebar, modal window is opened (design has been updated)
6.2 Familiar Names and Descriptions
One of the best UX practices is to use familiar, clear language in interface text, instructions, and error messages.
6.3 Platform Standards Compliance
Ensure the interface adheres to the design and functionality standards of the platform it is developed on (e.g. Android/iOS, macOS/Linux, etc.) Compliance with the design standards of the operational system makes it more familiar to users.
6.4 No Unusual or Unexpected Elements
Do not use unfamiliar or unexpected interface elements that deviate from user expectations.
7. System Status
The System Status principle is a heuristic that ensures that users are always informed about what is happening within the system.
Imagine you’re shopping online and adding items to your cart. When you reach the checkout, you find out that one of them is out of stock. Why didn’t the system inform you earlier? This is why the System Status usability principle is so important – it keeps users informed at every step of a user journey, leaving no room for uncertainty. This principle has 4 main statements:
7.1 Users Should Know What’s Happening
Provide users with clear and real-time information about the system’s current status. This includes visual indicators, such as loading spinners, progress bars, or notifications, that keep users informed about ongoing processes. This usability principle gives users a sense of predictability and lets them make informed decisions about their next actions.
7.2 Users Should Understand Why Things Are Happening
Clearly explain the reasons behind system behaviors, actions, or errors to help users feel informed and in control. Providing detailed feedback, such as explanations for delays, error causes, or unexpected outcomes, allows users to address issues effectively.
7.3 Users Should Know What Will Happen Next
Communicate clearly about upcoming steps or outcomes to help users feel confident and prepared as they navigate the interface. Use progress indicators, clear instructions, or previews to show what lies ahead. This principle helps users understand the process and reduces uncertainty.
For example, Airbnb clearly guides users through the final steps of completing forms, helping them feel confident about what comes next. In contrast, interfaces lacking progress bars or clear page titles often leave users feeling lost or unsure of their progress.
Clear next steps at the final stage of the appointment form
7.4 Users Should Understand Their Location
Add clear indicators of where users are within the system or process. Tools like breadcrumbs, page titles, or progress bars help users understand their current position and navigate effectively. Note that it’s important not only to provide the system status but also to give users a sense of control.
By applying these usability principles, you create a user flow that feels transparent – a hallmark of what is good user experience.
8. Accessibility
The Accessibility is one of the most important principles in UX best practices – and yet, it’s often overlooked. This usability principle means that a product or service should be designed to be clear and usable for everyone, regardless of their physical, cognitive, or technical abilities.
For more insights about achieving accessibility standards, read on the official W3C WCAG website.
To put it simply – imagine the interface as a door to a building: it should be wide enough for wheelchairs and strollers, have easy-to-use handles for people with arthritis, and include clear signage for those with visual impairments. The same ideas apply to user interfaces. We broke down Accessibility principle into the following blocks:
8.1 Perceivable
All information and interface elements are presented in a way that users can easily perceive, regardless of their abilities. This includes using accessible colors and contrasts, readable font sizes, and providing alternative formats for content, such as text descriptions for images or audio options for visually impaired users. Making content perceivable allows everyone to interact with and understand the system effectively.
8.2 Operable
Design interfaces so that all users can easily navigate and interact with them, regardless of their physical or cognitive abilities. This includes supporting keyboard navigation, providing sufficient time to complete tasks, and avoiding elements like rapidly changing content that may hinder usability.
8.3 Understandable
Create interfaces with clear and simple language, logical navigation, and predictable interactions to ensure all users can easily comprehend and use the system. Avoid jargon, provide clear instructions, and ensure that content and functionality align with user expectations.
Brands like TED and Zappos provide excellent accessibility features, including keyboard shortcuts and high-contrast modes, ensuring inclusivity for users with diverse needs. Neglecting accessibility, however, can limit a product’s reach and harm its reputation.
Subtitle options for the video player, available in 18 languages
8.4 Robust
Shape your products to function reliably across a wide range of devices, browsers, and assistive technologies. Ensure that the system adheres to established web standards and remains compatible with future technologies to provide all users with a consistent and accessible experience.
Looking Ahead
Don’t let usability be an afterthought. Let these UX design principles inspire your work, helping you deliver products that are predictable, engaging, and truly user-friendly. Because at the end of the day, what is good user experience if not one that delights every user, every time?
This material is an original usability framework crafted by Craft Innovations Team. If you’re planning to utilize our methodology, please mention, tag or cite us. Join us on the mission to craft products users love!
Want to share your perspective and help us improve? Drop us a line at uxresearch@craftinnovations.global.
The Team Behind The Methodology
- Marina Podstrigich – Head of Design, Partner at Craft Innovations
- Irina Malakhova – Lead UX Researcher at Craft Innovations
- Nataliia Kucheruk – Head of Research at Craft Innovations
- Alina Zaporozhets – UX Designer at Craft Innovations
Special acknowledgment to the Craft Innovations research team for their insightful feedback and to the design team for their essential help in selecting and refining the examples.
