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  1. Functionality vs. Functionalities: are both correct and idiomatic?

    Sep 16, 2014 · Both functionality as well as functionalities can be used depending on context. They are both correct, grammatical and make sense in appropriate context.

  2. What is Functionality? | IxDF - The Interaction Design Foundation

    3 days ago · Functionality refers to whether a design works and helps the users meet their goals and needs. From products such as chairs or tables to designs such as books or web …

  3. "Functionalities" vs "features" - what's the difference?

    Sep 27, 2011 · The functionality of a product usually means the extent of its overall ability: 2. The purpose that something is designed or expected to fulfill - manufacturing processes may be …

  4. How to Create Research-Backed User Personas: The UX Designer's …

    Master personas with our 2025 UX guide—build with real research, align teams, and future-proof your design career.

  5. What are Cross-Functional Teams? — updated 2025 | IxDF

    2 days ago · A cross-functional team includes members with different skills, expertise, and levels working towards a common goal.

  6. What is Usability - The Ultimate Guide — updated 2025 | IxDF

    Usability is a measure of how well a specific user in a specific context can use a product/design to achieve a defined goal.

  7. What is Ease of Use? — updated 2025 | IxDF

    2 days ago · Ease of Use and Functionality It is also worth remembering that while it sometimes worth sacrificing functionality to provide ease of use that many products sacrifice ease of use …

  8. What is Ergonomics? — updated 2025 | IxDF

    3 days ago · The principles of ergonomics govern aspects of human-to-product or human-in-environment functionality, mainly to optimize conditions for individuals so that they: Have a …

  9. What is a Prototype? | IxDF

    Prototypes are early models of a product that simulate its design and functionality. Prototyping is the experimental process of making prototypes.

  10. What are Functional Requirements? — updated 2025 | IxDF

    2 days ago · Functional requirements are guidelines that outline the necessary functionalities and characteristics of a product to ensure it meets user and business needs.