GUI Bloopers: Don'ts and Do's for Software Developers and by Jeff Johnson

By Jeff Johnson

No unmarried individual can comprehend every little thing, that is why this publication is a needs to for someone designing a GUI (graphical consumer interface). software program programmers and site designers can simply lose sight of precisely how anyone will interface with their layout. without information or suggestions from the consumer, bloopers are sure to abound. writer Jeff Johnson, who's a expert in human-computer interplay, discusses error that software program programmers are inclined to make in structure, textual content, interplay, responsiveness, administration and extra. His total strategy of designing from the skin in turns the programmer's concentration to the tip person. a great deal of examples, either solid and undesirable, are integrated.

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While he is typing, a message suddenly appears on the screen saying, "Out of memory. " No other applications are open. He stares at the computer screen, trying to figure out what to do. A stockbroker is using her computer to check the status of a client's stock order. " She thinks this is probably the same thing as the "Stock Symbol" she specified when she first recorded the order, but she isn't sure. She asks a coworker. Computer-based products and services should be designed to let users focus their attention on their own problems and goals, whatever they may be: analyzing financial data, looking up job prospects on the Web, keeping track of relatives' birthdays, and so on.

7 Principle 7: Design for responsiveness To design software that satisfies its users, designers must of course ask, What do the users want? Considerable evidence has been amassed over the past four decades of computer use that responsiveness—the software's ability to keep up with users and not make them wait—is the most important factor in determining user satisfaction with computer-based products and services. Study after study has found this [Miller, 1968; Thadhani, 1981; Barber and Lucas, 1983; Lambert, 1984; Shneiderman, 1984; Carroll and Rosson, 1984; Rushinek and Rushinek, 1986].

What users don't know is the software. They don't know the meaning of the various sections of the display. They don't know what is dependent on what. The bottom line is that if the user interface of the software that you develop is ambiguous—textually or graphically—and users misinterpret it, they aren't the real losers; you are. If your intended users misperceive or misunderstand your design, they may have an immediate problem, but you will have the more serious and longer-term problem: unsatisfied users, resulting in diminished sales.

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