Comparative analysis of task analysis products
Andy Whitefield, Becky Hill · Interacting with Computers · 1994
Given the number and variety of task analysis (TA) products in the human-computer interaction literature, it is often difficult to understand exactly what they contain and how they differ from each other. This paper presents a schema for the possible content of a TA product, and uses the schema to examine in detail four particular products. A comparison of these enables the identification of five suggested features for distinguishing between TA products: the psychological status of the behaviours; any fixed behaviours; the number of levels in the decomposition; any fixed levels in the decomposition; and the separation of objects and behaviours. Both the schema and the distinguishing features support the comparative assessment of TA products.