Contributions
Nielsen founded 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 Web easier to use.
Nielsen gave his name to Nielsen's Law, in which he stated that network connection speeds for high-end home users would increase 50% per year, or double every 21 months. As a corollary, he noted that, since this growth rate is slower than that predicted by Moore's Law of processor power, user experience would remain bandwidth-bound.
Nielsen has also defined the five quality components of his "Usability Goals", which are:
- Learnability
- Efficiency
- Memorability
- Errors (as in low error rate)
- Satisfaction
Read more about this topic: Jakob Nielsen (usability Consultant)