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Chapter: User Interface Design

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Indirect Manipulation

In practice, direct manipulation of all screen objects and actions may not be feasible because of the following:

Indirect Manipulation

 

In practice, direct manipulation of all screen objects and actions may not be feasible because of the following:

 

The operation may be difficult to conceptualize in the graphical system. 

The graphics capability of the system may be limited.

The amount of space available for placing manipulation controls in the window border may be limited.

It may be difficult for people to learn and remember all the necessary operations and actions.

 

When this occurs, indirect manipulation is provided. Indirect manipulation substitutes words and text, such as pull-down or pop-up menus, for symbols, and substitutes typing for pointing.

 

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