Benyon, David <br/><br/>
Designing interactive systems :  people, activities, contexts, technologies / 
David Benyon, Phil Turner, and Susan Turner 
 - Harlow, England; New York:  Addison-Wesley,  2005 
 - xxxv, 789 p.:  col. ill.;  25 cm. 
<br/><br/>Includes bibliographical references (p. [760]-775) and index 
<br/><br/><label>ISBN: </label>0321116291 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human--Computer interaction<br/>Interactive computer systems