World Day of Law (10/11)

World Usability Day was established in 2005 at the initiative of the Association of Usability Professionals. In the same year it was celebrated for the first time and since then it has been celebrated annually on the second Thursday of November.

Usability (Usability) can be literally translated from English as "practicality, convenience and ease of use." Of course, there are more detailed and precise definitions. For example, Jacob Nielsen defines usability as: "... the quality of the user's experience in some interactive environment (web site, program, etc.)".

Today, the term "usability" is increasingly used as a synonym for "ergonomics" in the context of products such as consumer electronics or communications. In a broader sense, it can also be used to determine the degree to which mechanical objects and tools - such as a doorknob or hammer - perform their assigned functions. Thus, the most adequate translation of the word "usability" would be "convenience and ease of use, application" and even "practicality".