Articles

Jakob Nielsen

Jakob Nielsen, Ph.D., is a User Advocate and principal of the Nielsen Norman Group which he co-founded with Dr. Donald A. Norman (former VP of research at Apple Computer). Dr. Nielsen established the "discount usability engineering" movement for fast and cheap improvements of user interfaces and has invented several usability methods, including heuristic evaluation. He holds 79 United States patents, mainly on ways of making the Internet easier to use. Read more about Jakob

Articles

Usability Testing of USA.gov Mega-Menus

November 16, 2010

Mega-dropdown menus mainly worked well in user testing, but vague images and poor topic organization caused very low success rates in some cases.

Mega-Menus Gone Wrong

November 16, 2010

Big 2-D drop-downs can facilitate site navigation - if they're properly designed. Two examples illustrate some mega-menu usability pitfalls.

Photos as Web Content

November 1, 2010

Users pay close attention to photos and other images that contain relevant information but ignore fluffy pictures used to 'jazz up' Web pages.

Mental Models

October 18, 2010

What users believe they know about a UI strongly impacts how they use it. Mismatched mental models are common, especially with designs that try something new.

Alphabetical Sorting Must (Mostly) Die

October 4, 2010

Ordinal sequences, logical structuring, time lines, or prioritization by importance or frequency are usually better than A-Z listings for presenting options to users.

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