Macromedia Director as a Prototyping and Usability Testing Tool
http://www.acm.org/crossroads/xrds6-5/macromedia.html

Ludi, Stephanie
ACM Crossroads
2000

Abstract:

Efforts to understand user requirements commonly focus on the functionality and features of a product. However, it is important to analyze other product attributes, such as usability. A product may meet all of its functional requirements, but can fail if it has an interface that is difficult to navigate and learn. To address this problem, it is important to get feedback from users as early in the development life cycle as possible. A common technique is to develop a prototype or mockup of a product's interface to present to users.