diff --git a/chapters/quality.md b/chapters/quality.md index bab3f08..6a9d58b 100644 --- a/chapters/quality.md +++ b/chapters/quality.md @@ -28,7 +28,7 @@ Whereas the above qualities are concerned with how software behaves technically Other qualities are concerned with the use of the software in the world by people: -* *Learnability* is the easy with which a person can learn to operate software. Learnability is multi-dimensional and can be difficult to measure, including aspects of usability, expectations of prior knowledge, reliance on conventions, error proneness, and task alignment. +* *Learnability* is the ease with which a person can learn to operate software. Learnability is multi-dimensional and can be difficult to measure, including aspects of usability, expectations of prior knowledge, reliance on conventions, error proneness, and task alignment. * *User efficiency* is the speed with which a person can perform tasks with a program. For example, think about the speed with which you can navigate back to the table of contents of this book. Obviously, because most software supports many tasks, user efficiency isn't a single property of software, but one that varies depending on the task.