Progressive Disclosure: The Best Interaction Design Technique?

Progressive disclosure is an interaction design technique that sequences information and actions across several screens in order to reduce feelings of overwhelm for the user. By disclosing information progressively, you reveal only the essentials and help the user manage the complexity of feature-rich sites or applications. Progressive disclosure follows the typical notion of moving from 'abstract to specific'; only it may mean sequencing interactions and not necessarily level of detail (information). In other words, progressive disclosure is not just about displaying abstract then specific information, but rather about 'ramping up' the user from simple to more complex actions.

Spillers, Frank. Demystifying Usability (2004). Design>Web Design>Personalization>Interaction Design

Traces of Previous Use: The Communicational Possibilities of Interaction Histories

In the digital environment, human presence leaves no trace; every user of an electronic collection is in effect an isolated user. Some researchers in computer interface design have suggested that a useful strategy for reducing this isolation might be to provide a means for a collection to retain an interaction history. If the system creates and makes accessible a record of activity, subsequent users may be able to derive meaning from the record. One well-known implementation of this strategy is in the amazon.com lists of books that were also bought by people who bought the book currently shown. This strategy holds promise for a wider implementation, and is particularly promising as a tool for interfaces designed for information browsing, where user structuring of the items represented can be a significant indication of how they have interpreted the collection. Issues include the role of intention in communication – clearly purchasers at amazon.com are not buying books primarily to create a message for subsequent users – and the significant effects of presuppositions in any communication process – subsequent users must assume that previous buyers were not collecting a set of "worst books" on the topic. Drawing on previous research on interaction histories, as well as Suchman's ideas on situated activity and the phenomenological approach to interface design proposed by Winograd and Flores, this paper examines the means by which interaction histories might be designed specifically to play a role as a communication tool between users of full-prospect browsing interfaces to electronic document collections.

Ruecker, Stan. University of Alberta (2003). Design>Web Design>Personalization>Interaction Design