Completion
http://xkcd.com/859/
The subtle satisfaction of objects coming together in incidental ways. Tobias Ottahal, Jeff Werner.


What is Nice Fit?
Nice Fit is an interaction design theory that explores how objects fit together in subtly satisfying ways. This fit framework can be applied to new and existing objects in incidental ways to make them more usable and enjoyable. The Nice Fit table is an example of this: the user experience is enhanced, as the table responds to objects by providing a place for them to fit.


Nice Fit refers to objects that: