Enjoyment, pleasure, fun, joy in relation to user experience.
Article "The semantics of fun: Differntiating enjoyable experience" :
Over the last 20 years repeated attempts have been made in HCI to put enjoyment into focus. How-ever, it is only recently that the importance of enjoyment, even in serious applications, has been widely recognised by the HCI community.*
Article "Engineering Joy" :
The notion of joy of use is instantly appealing, though its actual meaning is hard to grasp. In 1997, Bob Glass said, “If you’re still talking about ease of use then you’re behind. It is all about the joy of use.*
*Article "Beyond Fun" :
So what about fun? Fun is an important and obvious example of how the concept of usability has developed. In circumstances where human-computer interaction is discretionary,and especially where it involves sustained user activity, ease and simplicity are just not enough. People must want to use a system, and must continue wanting to use the system. Part of achieving this is making the system fun to use.
Is there any real differences between: Enjoyment, pleasure, joy, fun.