Wizards and Guides: Principles of Task Flow for Web Applications, Part 2
http://www.boxesandarrows.com/archives/wizards_and_guides_principles_of_task_flow_for_web_applications_part_2.php

Baxley, Bob
Boxes and Arrows
2004

Abstract:

In part one of this article the discussion was one of views, forms, and the manner in which they could be combined into a task structure known as a hub. This installment expands on those themes by exploring two other types of task structures commonly employed in web applications--wizards and guides.