Who introduced the term learnability to usability?

1. How is learnability defined?
2. What is learnability in HCI?
3. What is learnability in software testing?
4. What is the meaning of the word usability?

How is learnability defined?

Learnability is defined as the ease and speed with which the users get familiar with the use of a new product. With high learnability, users can intuitively learn to use a product without training or manuals.

What is learnability in HCI?

Learnability considers how easy it is for users to accomplish a task the first time they encounter the interface and how many repetitions it takes for them to become efficient at that task.

What is learnability in software testing?

In software testing learnability, according to ISO/IEC 9126, is the capability of a software product to enable the user to learn how to use it. Learnability may be considered as an aspect of usability, and is of major concern in the design of complex software applications.

What is the meaning of the word usability?

What — Definition of Usability. Usability is a quality attribute that assesses how easy user interfaces are to use. The word "usability" also refers to methods for improving ease-of-use during the design process.