Presentation Display of information in a user interface.

View A visible, interactive user interface communicating and representing a state or sample of the model.

View Model A pure-code representation of the data and operations on a user interface, but not the interface itself.

Facts, Thoughts and Opinions

Navigation replaces recall with recognition

Navigation replaces recall with recognition: Instead of forcing users to come up with a complex search query, they can recall only a minimum and then use recognition to augment their query with relevant terms.