Intuition is a type of cognitive processing that is often non-conscious
and utilises stored experiential knowledge. Intuitive interaction involves the use of
knowledge gained from other products and/or experiences. We have developed
novel approaches and techniques for studying intuitive use of interfaces, and
shown that intuitive interaction is based on past experience with similar artefacts.
Based on our empirical work we have developed principles and tools for designers
to assist them in making interfaces more intuitive. These principles are discussed
in this paper.