in the application programs can affect the interfaces. And just
to make life more interesting, remember that the changes can
move in the other direction: Advances in interface design can
require changes in the operating system, which then require
changes to applications~and sometimes even to hardware.
Figure 2-4. Operating System with a Graphical User Interface
Interface
Application
Application
Operating System
Hardware
Managing
Changes
Changes to application programs come from two primary
sources:
0
Many changes come from changes in user require-
ments or additions to the application's ...
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