Title:
Controlling User Interface Objects through Pre- and Postconditions
Controlling User Interface Objects through Pre- and Postconditions
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Author(s)
Gieskens, Daniel F.
Foley, James D.
Foley, James D.
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Abstract
We have augmented user interface objects (i.e. windows, menus, buttons, sliders, etc.) with preconditions that determine their visibility and their enabled/disabled status and postconditions that are asserted when certain actions are performed on the object. Postconditions are associated with each functionally different action on the object. Attaching pre- and postconditions to interface objects provides several useful features, such as selective enabling of controls, rapid prototyping, and automatic generation of explanations and help text.
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Date Issued
1991
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30112 bytes
Resource Type
Text
Resource Subtype
Technical Report