Download Human Factors Psychology and Assistive Technology in Human-Computer Interaction (HCI) and more Lab Reports Computer Science in PDF only on Docsity! CS5540 1 1Fall 2007 The “Human” Side of HCI: Human Factors Psychology and Assistive Technology Margaret Jelinek Lewis, PhD 2Fall 2007 Presentation Overview Three Parts 1. Overview of Human Factors Psychology 2. Primer in Cognitive Psychology 3. Introduction to Computer Access and Assistive Technology 3Fall 2007 What is Human Factors? • The application of psychological principles to the design of human-machine systems. • Human factors professionals develop models of human performance that can aid designers of human-machine systems. 4Fall 2007 What is Human Factors? 2 • Meister (1989): “The study of how humans accomplish work-related tasks in the context of human-machine system operation, and how behavioral and non-behavioral variables affect that accomplishment” CS5540 2 5Fall 2007 What is Human Factors? 3 • Meister (1989): – “behavioral” refers to psychological constraints - how do humans process information? – “non-behavioral” refers to physical constraints - can a human physically work a control? • Emphasis in Human Factors is on design - how should a system be designed to accommodate a human operator? 6Fall 2007 Contributing fields: Human Factors (Ergonomics) Physiology & Medicine Experimental Psychology Engineering Psychology Engineering 7Fall 2007 How does Human Factors differ from Experimental Psychology? • Experimental Psychology is the scientific study of mind, brain, and behavior – Why do humans think and behave the way they do? • Human factors is the study of human behavior in the context of technological systems – How should we design a system to accommodate the way humans think and behave? 8Fall 2007 History of Human Factors • WWI – Personnel Selection: psychometricians • WWII and the genesis of Human Factors (or Engineering) Psychology – Personnel Selection continued to be emphasized “fit the man to the job” – Human Performance: experimental psychologists “fit the job to the man” CS5540 5 17Fall 2007 Applied Cognitive Psychology: Design Issues • Screen/font color • Menus • Form fill-ins • Special needs of users 18Fall 2007 Assistive Technology • A.T. is any device or piece of equipment that helps us as we go about our daily lives. • In some cases, computers can provide (or be) assistive technology, in other cases, users need assistive technology for their computers to increase usability. 19Fall 2007 Computer Access and Assistive Technology • Goal is to fit the machine to the person (not vice versa!) • Particularly relevant for people with disabilities – computers must be adapted for the use and needs of specific individuals 20Fall 2007 Human Considerations in Software Design Consider 5 different users: 1. A University of Utah student trying to do research for an HCI paper on the Web. 2. An adult on April 13 using tax preparation software (such as Turbo Tax) at home. CS5540 6 21Fall 2007 Human Considerations in Software Design 2 Consider 5 different users: 3. A young woman with Cerebral Palsy who is typing a paper for a class. 4. A child playing a computer-video game. 5. An octogenarian grandparent sending email to faraway grandchildren. 22Fall 2007 For More Information Check out the WEB! • Human Factors and Ergonomics Society: www.hfes.org • Computer-Human Interaction (SIGCHI): www.sigchi.org • Bobby: http://www.cast.org/bobby/ 23Fall 2007 For More Information 2 Check out the WEB! • Accessibility: www.w3.org/WAI (Web Accessibility Initiative) • Kids & Computers: www.hcibib.org/kids • Microsoft Accessibility: www.microsoft.com/enable 24Fall 2007 Questions….
