Articles

Raluca Budiu

Raluca Budiu is Senior Director, Data Strategy, at Nielsen Norman Group, where she uses her data-analysis expertise to drive strategic decisions. She also serves as editor for the articles published on NNgroup.com. Raluca has coauthored many NN/g reports, as well as the book Mobile Usability. She holds a Ph.D. from Carnegie Mellon University.

@rbudiu

Articles and Videos

  • Images on Mobile

    Decorative images should not be used on mobile, as they lengthen the page and make it load more slowly. Use images only if they add informational value to your page.

  • AI as a UX Assistant

    Generative-AI bots support UX professionals by acting as content editors, research assistants, ideation partners, and design assistants.

  • Passwordless Accounts

    A new pattern allows users to create an account without defining a password. Later on, they can log in through an OTP or a passkey.

  • ChatGPT, Bard, or Bing Chat? Differences Among 3 Generative-AI Bots

    Participants rated Bing Chat as less helpful and trustworthy than ChatGPT or Bard. These results can be attributed to Bing’s richer yet imperfect UI and to its poorer information aggregation.

  • Information Foraging with Generative AI: A Study of 3 Chatbots

    In a study of ChatGPT, Bard, and Bing Chat, users found these tools helpful and trustworthy. They expected these AI chatbots to aggregate information in a concise and specific manner, while fully considering contextual cues.

  • Accordions on Mobile

    Accordions provide an overview of the whole page and mitigate the problem of long mobile pages, allowing users to directly access the content of interest.

  • UX Research Methods: Glossary

    Use this glossary to quickly clarify key terms and concepts related to research methods in UX.

  • Consistency vs. Innovation in UX Design

    Any type of innovation requires users to learn the new pattern. It's worth departing from convention only if you are sure that the new pattern will perform better than what is already available.

  • Between-Subjects vs. Within-Subjects Study Design

    In user research, between-groups designs reduce learning effects; repeated-measures designs require fewer participants and minimize the random noise.

  • Quantitative UX: Glossary

    Use this glossary to quickly clarify key terms and concepts related to quantitative user studies.