Increasingly, software engineering (SE) and UID have to cope with a shorter time-to-market, whereas the quality of the delivered software must not suffer. This continuous shortening of development lifecycles is a great challenge to both project management and the applied methods and tools. Therefore, many usability engineering (UE), UID and agile method experts have developed light-weight approaches or so-called agile usability engineering(AUE).

Usage goes down as interaction costs increase. User motivation determines how fast demand drops, following an elasticity curve.

An Informal Tool For Early Stage Web Site and UI Design

Raccolta di materiale su Human computer interaction.

Come recita il titolo, questo sito raccoglie esempi di cose che sono difficili da usare perchè ignorano sistematicamente il fattore umano (inteso in senso non-negativo).

Per chi fosse interessato all'argomento consiglio anche questo libro di Donald Norman: La caffettiera del masochista.