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HCI

HCI. Human Computer Interaction CHI - Computer Human Interaction importance has emerged over the past 20 years cheaper hardware broader group of users diverse applications OS is more sophisticated and allows for multi-user and multi-tasking benefits reduces training costs

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HCI

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  1. HCI • Human Computer Interaction • CHI - Computer Human Interaction • importance has emerged over the past 20 years • cheaper hardware • broader group of users • diverse applications • OS is more sophisticated and allows for multi-user and multi-tasking • benefits • reduces training costs • makes people more productive • increases sales • saves lives • $1 spent during design saves $10 during development and $100 after release

  2. History • 1962 first video game developed at MIT • 1963 Ivan Sutherland’s Sketchpad is considered the first direct manipulation program • 1965 the term ‘hypertext’ is coined by Ted Nelson • 1965 the mouse is first developed • 1973 Xerox Alto pioneers the first WIMP interface - Windows, Icons, Menu and Pointer • 1974 overlapping windows are introduced in Smalltalk • 1975 the term ‘icon’ is coined by David Smith • 1976 Pong is sold at Sears • 1978 Visicalc - the first spreadsheet application • 1981 Xerox Star pioneers the first WIMP interface - Windows, Icons, Menu and Pointer • 1983 the Apple Lisa introduces pull down menus • 1984 Apple Macintosh Super Bowl commercial • 1985 Windows 1.0 • 1988 Apple sues Microsoft claiming infringement of its “look and feel” • 1990 Tm Berners Lee creates the World Wide Web • 1992 Scott Grissom publishes Step3D • 1994 Marc Andreesen Mosaic is the first popular web browser and founded Netscape • 1998 Google was founded by Larry Page and Sergey Brin

  3. Usability Myths • Good user interfaces are simply appealing graphics • Usability is an outcome of common sense • time consuming • conflicting requirements • must meet needs of wide range of users • Applying user interface guidelines will lead to usability • Usability problems can be solved with training an documentation

  4. Interaction Design • Well designed interfaces are easy to interpret and understand. They have visible clues to their operation. • Poorly designed interfaces can be difficult and frustrating to use. They provide no clues, or sometimes false clues. • Interaction Designers vs. Software Engineers • Architects vs. Civil Engineers • Architects design enjoyable spaces to support human activities • Civil Engineers are concerned about construction costs, building codes, materials and deadlines. • Critical Features • early focus on users • empirical measurements • iterative design

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