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Inside Macintosh: Macintosh Human Interface Guidelines / Part 1 - Fundamentals
Chapter 3 - Human Interface Design and the Development Process


Design Decisions

For design decisions regarding features in your application, you need to weigh the costs, which are not all financial, against the potential benefits. Every time you add a feature to your application, think about the
following factors:

  • Your application gets larger.
  • Your application gets slower.
  • Your application's human interface gets more complex.
  • You spend time in development rather than refinement of existing features.
  • Your application becomes more difficult to document.
  • You increase the number of possible user errors.
  • Every new feature can have an impact on an existing feature.

This section presents several additional factors you'll want to take into consideration when adding features to your product.


Subtopics
Features Inspired by Market Pressures
Feature Cascade
The 80 Percent Solution

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© Apple Computer, Inc.
29 JUL 1996



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