Raluca Budiu is a Senior Researcher with Nielsen Norman Group. At NN/g she consults for clients from a variety of industries and presents tutorials on mobile and tablet usability, cognitive psychology for designers, and principles of human computer interaction. She coauthored the NN/g reports on tablet usability, mobile usability, iPad usability, and the usability of children's websites, and the book "Mobile Usability". Raluca also served as a judge for GSMA Global Mobile Awards 2012-2014 and Tabby Awards 2013. She holds a Ph.D. from Carnegie Mellon University. Read more about Raluca
March 2, 2014
Demanding that users register or log in before they can use an app or see website information has high interaction cost and defies the reciprocity principle.
February 16, 2014
Humans tend to return good deeds: use this social psychology law in user interface design to gain users’ trust and motivate engagement with your site or app.
February 9, 2014
Testing phones, tablets, or other mobile devices with real users requires special consideration for recording equipment, room setup, and even the test users.
December 8, 2013
The Samsung Galaxy Gear smartwatch poses unique problems due to the tiny touchscreen. The use of gestures and streamlining content are reasonable solutions, but need to be implemented in a more usable manner.
October 12, 2013
Flat design hides calls to action, and swiping around the edges can interfere with carousels and scrolling.
September 14, 2013
Native and hybrid apps are installed in an app store, whereas web apps are mobile-optimized webpages that look like an app. Both hybrid and web apps render HTML web pages, but hybrid apps use app-embedded browsers to do that.