Characteristics of Good Interaction Design

Trustworthy:



Appropriate:



Smart:



Responsive:



Clever:



Ludic:



Pleasurable:

The Laws of Interaction Design

Moore's Law: Moore's Law is a prediction that the number of transistors on integrated circuits will double. Devices will become faster, smaller, and more powerful through the years.



Fitts': Fitts's states that the time it takes to move from a starting position to a final target is determined by the distance to the target and the size of the target. The larger the target he faster it can be reached.



Hick's:



Migic Number Seven:



Tesler's:



Poka-Yoke:



Direct and Indirect Manipulation:



Feedback and Feedforward:

The Elements of Interaction Design

Motion: Motion is a trigger for action, and without motion there can be no interaction. Information must move form one entity to another.

Space: Space provides a context for motion. All interactions take place in space. Space can be a digital screen or the physical space we inhabit.

Time: All interactions take place over time. Movement through space takes time to accomplish. Time can be measured in different increments and is different digitally than in the human space.

Appearance: Is how something looks, such as proportion, structure, size, shape, weight, and color. How something looks can tell use how to interact with it.

Texture: Texture is how an object feels in the hand. The texture can also tell you how to interact with an object.