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101 Must-Know Terms for Every Digital Product Designer

Know what 'Wizard of Oz testing' is? Read on to find out...

Craig Barber

Senior Product Designer

My fellow product designers! Navigating the world of digital product design can sometimes feel like deciphering a secret code.

In this post, I will be covering 101 must-know terms that will elevate your product design skills.

Whether you're a seasoned pro or just starting out, being able to "speak the language" and understand key concepts and principles can really boost your credibility in the workplace.

So, pour yourself a strong cup of coffee and let's delve into the 101 essential terms that every product designer should have in their toolkit.

101 Essential Terms Used in Digital Product Design

101 Must-Know Terms for Every Digital Product Designer

User Experience (UX)
Refers to the overall experience and satisfaction a user has while interacting with a product, including the usability, accessibility, and emotional response.

User Interface (UI)
The visual elements and interactive components of a product that users interact with, including buttons, forms, menus, and icons.

Information Architecture (IA)
The organisation and structure of content within a product, aiming to facilitate easy navigation and findability for users.

Wireframe
A basic visual representation of a product's layout and structure, typically created in the early stages of design to define content placement and hierarchy.

Prototype
A functional or interactive model of a product used for testing and evaluation purposes, helping to validate design concepts and gather user feedback.

Usability
The extent to which a product can be used effectively, efficiently, and satisfactorily by its intended users, often measured through user testing and research.

User Research
The process of gathering insights and understanding user needs, behaviours, and motivations to inform the design process.

Persona
A fictional character created to represent a specific user type, based on user research data, used to guide design decisions and empathise with users.

User Journey
The sequence of steps or interactions a user goes through while using a product, from the initial discovery to the final goal or task completion.

User Flow
A visual representation of the paths users take within a product or website, illustrating the different screens and interactions they encounter.

Responsive Design
Designing a product or website to adapt and provide an optimal user experience across various devices and screen sizes, such as desktops, tablets, and mobile phones.

Visual Hierarchy
The arrangement and prioritisation of visual elements in a design, guiding users' attention and emphasising important information.

Call-to-Action (CTA)
A prominent element, such as a button or link, that prompts users to take a specific action, such as making a purchase or signing up for a newsletter.

Microinteractions
Small, subtle design elements that provide feedback or response to user actions, enhancing the overall user experience and adding delight.

Accessibility
Designing products and interfaces to be usable by individuals with disabilities, ensuring equal access to information and functionality.

Visual Design
The aesthetic aspect of design, focusing on the visual elements, typography, colors, and overall style that contribute to the product's look and feel.

Interaction Design
Designing and defining the behaviour and responsiveness of interactive elements in a product, such as button hover effects or swipe gestures.

Card Sorting
A method used in information architecture to categorise and organise content by having users group related items together.

Affordance
The perceived functionality or purpose of an object or element based on its visual or physical characteristics, indicating how it can be interacted with.

A/B Testing
Conducting an experiment by presenting two or more versions of a design or feature to users to determine which performs better in terms of user behavior or conversion rates.

Conversion Rate
The percentage of users who complete a desired action or goal, such as making a purchase or signing up for a service, out of the total number of users who interacted with the product.

Heatmap
A visual representation of user interaction with a product or webpage, displaying areas of high and low engagement or attention.

Skeuomorphism
A design approach that mimics real-world objects and their textures or characteristics in digital interfaces, often creating a sense of familiarity or intuitiveness.

Flat Design
A minimalist design style characterised by the absence of three-dimensional effects, such as gradients or shadows, resulting in a clean and modern look.

Microcopy
Small snippets of text within a product, such as button labels or error messages, that provide guidance, instructions, or feedback to users.

Progressive Disclosure
Presenting information or features gradually to users, revealing more advanced or complex options as needed, to avoid overwhelming or confusing them.

Hamburger Menu
A common icon consisting of three horizontal lines stacked on top of each other, representing a collapsible menu often used in mobile or responsive designs to conserve screen space.

User Testing
Evaluating a product's usability by observing real users as they interact with the product, aiming to identify issues, collect feedback, and improve the design.

Card UI
A design pattern that organizes information or content into individual cards, typically displayed in a grid layout, making it easy for users to scan and interact with each card.

Gamification
The integration of game design elements, mechanics, or dynamics into non-game contexts, intended to increase engagement, motivation, and user participation.

Gestalt Principles
A set of principles that describe how humans perceive and organize visual information, such as proximity, similarity, closure, and continuity, which can be applied to improve visual design.

Responsive Typography
Adapting typography based on the screen size and device, ensuring legibility and readability across different resolutions and viewing conditions.

White Space
The empty or negative space between and around design elements, allowing for visual separation, clarity, and focus, and reducing clutter in the overall design.

Scrolljacking
An interaction technique where scrolling behaviour is altered or overridden, often resulting in a disruptive or frustrating user experience, and generally discouraged.

Onboarding
The process of guiding and familiarising new users with a product or app, often through interactive tutorials, tooltips, or walkthroughs, to ensure a smooth user transition.

Error Handling
Designing strategies and interfaces to effectively communicate and assist users when errors or mistakes occur, helping them understand and recover from errors easily.

Persona Empathy Map
A tool used to understand users' emotions, behaviours, and perspectives, helping designers gain empathy and design with user needs and motivations in mind.

Accessibility Compliance
Adhering to accessibility standards and guidelines, ensuring that digital products can be used by individuals with disabilities and conform to WCAG (Web Content Accessibility Guidelines).

Data Visualisation
Presenting complex data or information in a visually engaging and easy-to-understand manner, using charts, graphs, or infographics to communicate patterns or insights effectively.

Affinity Diagram
A method used to organise and categorise data or user insights gathered during research or brainstorming sessions, helping to identify patterns and relationships.

Figma
A popular cloud-based design tool that allows collaboration among designers, enabling them to create, prototype, and share designs in a single platform.

Sketch
A design tool primarily used for creating user interfaces and digital prototypes, known for its vector-based editing capabilities and extensive plugin ecosystem.

Design System
A collection of reusable components, patterns, guidelines, and assets that ensure visual and functional consistency across a product or brand, streamlining the design and development process.

Microcopy
Concise and purposeful copywriting used in user interfaces, such as button labels, form field instructions, or error messages, to guide users and enhance the overall user experience.

Accessibility Audit
A systematic evaluation of a product's accessibility, examining adherence to accessibility guidelines and identifying areas for improvement to ensure inclusivity.

Cognitive Load
The mental effort required for users to process information and perform tasks within a product, with the goal of minimising cognitive load to enhance usability.

Click-through Rate (CTR)
The percentage of users who click on a specific element, such as a button or link, compared to the total number of users who viewed the element, often used to measure engagement.

Motion Design
The use of animated elements, transitions, and effects in a product's interface to enhance usability, provide visual feedback, and create engaging user experiences.

Human-Centered Design
An approach that prioritises understanding the needs and behaviours of users, involving them in the design process to create solutions that address their specific challenges.

Conversion Funnel
A visual representation of the user journey from the initial interaction with a product to the desired conversion or goal, highlighting key stages and potential drop-off points.

Dark Pattern
Design elements or techniques deliberately used to manipulate or deceive users into taking actions they might not otherwise choose, often to benefit the business rather than the user.

Multichannel Design
Designing products or experiences that seamlessly span multiple channels or platforms, such as web, mobile, and physical touchpoints, ensuring consistency and continuity.

Parallax Scrolling
A technique where foreground and background elements move at different speeds while scrolling, creating a 3D-like effect and adding depth to the user experience.

Storyboarding
Creating a series of visual sketches or illustrations to depict the flow, interactions, and key moments of a user's experience with a product, often used in the early stages of design ideation.

Heuristic Evaluation
A method where experts evaluate a product's usability against a set of established usability principles or heuristics, identifying potential issues and areas for improvement.

Feature Creep
The gradual expansion or addition of unnecessary features to a product, often resulting in complexity and reduced usability, typically caused by poor prioritisation or scope management.

Scalability
The ability of a product or design system to accommodate growth, handle increased user demands, and maintain performance without significant changes or compromises.

Gamified Onboarding
Incorporating game elements or mechanics into the onboarding process to engage and motivate users as they learn and familiarise themselves with a product or service.

Usability Testing
A method of evaluating a product's usability by observing users as they perform specific tasks, providing insights into their behaviours, pain points, and satisfaction levels.

Design Thinking
A problem-solving approach that emphasises understanding user needs, ideation, prototyping, and testing to arrive at innovative solutions.

Mood Board
A collage of visual elements, such as images, colors, typography, and textures, used to capture and convey the desired aesthetic or mood for a design project.

Click Heatmap
A visual representation of user interactions on a webpage, highlighting areas where users click the most, providing insights into user behaviour and preferences.

Error Message
A notification or feedback displayed to users when an error or issue occurs, helping them understand what went wrong and guiding them towards resolution.

User Onboarding
The process of guiding new users through the initial steps of using a product, ensuring a smooth and seamless introduction to its features and functionalities.

Design Sprints
A time-constrained, collaborative process for rapidly exploring, prototyping, and validating ideas, usually conducted within a few days or weeks.

Skeletal Framework
A simplified representation of a design's structure, typically using simple shapes or lines, to outline the layout and hierarchy of elements.

Task Analysis
The process of breaking down complex tasks into smaller, more manageable steps to understand user workflows and design efficient user interfaces.

Fitts' Law
A mathematical model used in interaction design that predicts the time required to move to and select a target based on its size and distance from the starting point.

Usability Heuristics
A set of broad usability principles or guidelines that help evaluate and identify potential usability issues in a design, such as Nielsen's 10 heuristics.

Visual Feedback
Visual cues or indicators, such as hover effects, animations, or progress bars, that provide immediate response and feedback to user actions.

Design Critique
A structured process of providing constructive feedback and evaluation of a design, often involving a group of designers or stakeholders.

Microinteraction Design
The design of small, focused, and often delightful interactions within a product, such as button animations or notification sounds.

Golden Ratio
A mathematical ratio (approximately 1.618) often used in design to achieve visually pleasing proportions and balance between elements.

Inclusive Design
Designing products and experiences that are accessible and usable by a wide range of users, including those with disabilities or diverse needs.

Progressive Web App (PWA)
A type of web application that offers a more app-like experience, including offline functionality, push notifications, and the ability to be installed on devices.

Design Persona
A fictional representation of the target audience or user group, providing a shared understanding and focus for design decisions.

Haptic Feedback
The tactile or touch-based feedback provided by devices, such as vibrations or physical responses, to enhance the user experience.

Interaction Model
The overall structure and flow of user interactions within a product, defining how users navigate and accomplish tasks.

Mental Model
A user's understanding and conceptualisation of how a product or system works, which influences their expectations and interactions.

Typography
The art and technique of arranging and styling text, including font selection, size, spacing, and hierarchy, to enhance readability and visual appeal.

KPI (Key Performance Indicator)
Quantifiable metrics or measurements used to assess the performance and success of a product or design, such as conversion rate or engagement rate.

Visual Design System
A set of guidelines, principles, and assets that define the visual style and aesthetics of a brand

Error Prevention
Design strategies and mechanisms implemented to minimise the occurrence of errors and help users avoid mistakes or unintended actions.

Tree Testing
A method used to evaluate the effectiveness of an information architecture or navigation structure by having users complete specific tasks based solely on the hierarchy of categories.

Visual Design Language
A consistent and cohesive set of visual elements, such as colors, typography, icons, and imagery, used to create a distinct visual identity for a product or brand.

Wizard of Oz Testing
A technique in which users believe they are interacting with a fully functional product, but some or all of the interactions are manually simulated by a person behind the scenes.

UX Writing
The practice of crafting clear, concise, and user-centric text and copy within a user interface to guide users, communicate information, and support their tasks.

Progressive Enhancement
A design approach that focuses on building a solid foundation of core functionality and then progressively adding more advanced or complex features for users with modern or capable devices.

Scroll Depth
A measurement of how far users scroll down a webpage or screen, providing insights into content engagement and user behavior.

Visual Consistency
Maintaining a uniform visual style, design elements, and patterns across a product or interface to create a cohesive and harmonious user experience.

Empathy in Design
The ability to understand and share the feelings, needs, and perspectives of users, which guides the design process and helps create user-centered solutions.

User Feedback
Input and insights provided by users through surveys, interviews, usability testing, or feedback mechanisms, used to improve the design and address user needs.

Feature Prioritisation
The process of determining the order and importance of features or functionalities to be developed and implemented based on user needs, business goals, and constraints.

Design Validation
The process of evaluating design solutions or prototypes through testing, user feedback, or data analysis to ensure they meet user needs and align with project goals.

Usability Metrics
Quantitative measurements used to assess the usability and effectiveness of a product, such as task completion time, error rate, or user satisfaction ratings.

Visual Storytelling
Using visual elements, such as images, illustrations, or graphics, to convey a narrative or message, engaging users and enhancing their understanding and emotional connection.

Experience Mapping
A visual representation of the user's journey, emotions, and touchpoints with a product or service, helping to identify pain points, opportunities, and areas for improvement.

Design Patterns
Reusable solutions or approaches to common design problems or challenges, providing guidance and best practices for designing specific interactions or interfaces.

That's a wrap!

Congratulations on reaching the end of this post.

If you're anything like me, you've probably learned a thing or two about product design that you didn't know before – like what the heck Wizard of Oz testing is!

If you're just starting out, don't forget to check out my FREE Figma course.

And if you'd like to delve deeper into UX & UI design, be sure to explore my awesome new course.

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London Product Design Recruiters database

Connect with 150 product design recruiters in London

Access our database of London-based recruiters looking to place digital product designers like you