People make use of software applications in their activities, applying them as tools in carrying out tasks. That this use should be good for people -- easy, effective, efficient, and enjoyable -- is a principal goal of design. In this talk, we briefly present the notion of Conceptual Models, and argue that Conceptual Models are core to achieving good design. From years of helping companies create software applications, we have come to believe that building applications without Conceptual Models is just asking for designs that will be confusing and difficult to learn, remember, and use. We show how Conceptual Models are the central link between the elements involved in application use: people's tasks (task domains), the use of tools to perform the tasks, the conceptual structure of those tools, the presentation of the conceptual model (i.e., the user interface), the language used to describe it, its implementation, and the learning that people must do to use the application.
- Use the 1501 Page Mill entrance, at Page Mill and Peter Coutts Rd.
- Drive straight.
- Find parking after the second stop sign.
- The entrance is at the left corner of the building (5)
See map below.
Jeff Johnson is President and Principal Consultant at UI Wizards, Inc., a product usability consulting firm that offers UI design, usability reviews, usability testing, and training (http://www.uiwizards.com). He has worked in the field of Human-Computer Interaction since 1978. After earning B.A. and Ph.D. degrees from Yale and Stanford Universities, he worked as a user-interface designer and implementer, engineer manager, usability tester, and researcher at Cromemco, Xerox, US West, Hewlett-Packard Labs, and Sun Microsystems. At Xerox he worked on successors to Xerox's famed Star workstation. At Sun he worked for the "skunkworks" that produced Java. Jeff has taught at Stanford University and Mills College. In 2006, he was an Erskine Teaching Fellow at the University of Canterbury in Christchurch New Zealand. He has published numerous articles and book chapters on a variety of topics in Human-Computer Interaction and the impact of technology on society. He frequently gives talks and tutorials at conferences and companies on usability and user-interface design. He is the author of GUI Bloopers: Don'ts and Dos for Software Developers and Web Designers (2000), Web Bloopers: 60 Common Design Mistakes and How to Avoid Them (2003), GUI Bloopers 2.0: Common User Interface Design Don'ts and Dos (2007), Designing with the Mind in Mind (2010), and Conceptual Models: Core to Good Design (2011, co-authored with D. Austin Henderson).
Austin Henderson's 45-year career in Human-Computer Inter- action includes user interface research and architecture at MIT's Lincoln Laboratory, Bolt Beranek and Newman, Xerox Research (both PARC and EuroPARC), Apple Computer, and Pitney Bowes, as well as strategic industrial design with Fitch and his own Rivendel Consulting & Design. Austin has built both commercial and research applications in many domains including manufac- turing, programming languages, air traffic control, electronic mail (Hermes), user interface design tools (Trillium), workspace man- agement (Rooms, Buttons), distributed collaboration (MediaS- pace), and user-evolvable systems (Tailorable -- "design contin- ued in use," Pliant -- "designing for the unanticipated" and "scal- able conversations"). These applications, and their development with users, have grounded his analytical work, which has included the nature of computation-based socio-technical systems, the interaction of people with the technology in those systems, and the practices and tools of their development. The primary goal of his work has been to better meet user needs, both by improving system development to better anticipate those needs, and by broadening system capability to enable users themselves to better respond to unanticipated needs when they arise in a rich and changing world.
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