the attempt to find out if someone is telling a lie has been of human's interest. one of the techniques which is believed to be efficient in future is fmri (functional magnetic resonance imaging), using which the changes of regional blood flow during the designed paradigm can be recorded. this method has been considered as a better technique for studying lie and deception. for investigatin...

Many theories about the process of design have been derived from prescriptive or descriptive analysis. There have been few attempts to empirically test these theories. Protocol analysis facilitates detailed inspection of the design process allowing design task analysis across the temporal dimension. Some hypotheses about the design process, derived from the literature, are objectively tested us...

The Swedish MultiG program addresses research issues in distributed multimedia workstation applications, including CSCW, and high-speed networks. This report treats some basic CSCW issues in a distributed design environment. We review and analyse relevant literature on system design and computer supported cooperation and discusses the basic issues: What is design?What is collaboration in design...

Task analysis is the process of understanding the user's task thoroughly enough to help design a computer system that will effectively support users in doing the task. By task is meant the user's job or work activities, what the user is attempting to accomplish. By analysis is meant a relatively systematic approach to understanding the user's task that goes beyond unaided intuitions or speculat...

Motivating employees to contribute knowledge has been a daunting challenge in knowledge management. This study examines how job design influences employees' knowledge contribution to electronic repositories. Based on Warr's Vitamin Model, we posit that the job autonomy, skill variety, task feedback, task identity, and task significance aspects of job design influence employees' knowledge contri...

This report describes how a speech application using a speaker-independent continuous speech system is designed and implemented. The topics covered include task analysis, language design and interface design. An example of such an application, a voice spreadsheet, is described. Evaluation techniques are discussed. This research was supported by the Defense Advanced Research Projects Agency (DOD...