#usability

Design should be intuitive and simple.

From The Design of Everyday Things by Don Norman

The challenge is to design a metaobject protocol that is both powerful and easy to use.

From The Art of the Metaobject Protocol by Gregor Kiczales

The design of a metaobject protocol is a balance between complexity and usability.

From The Art of the Metaobject Protocol by Gregor Kiczales

Every object, whether it is a door, a phone, or a car, can be designed to be easier to use.

From The Design of Everyday Things by Don Norman

It is not enough to design a product that works; it must also be usable.

From The Design of Everyday Things by Don Norman