GUI-construction involves everything that is used to programmatically construct a custom graphical user interface under Mathematica.
Constructing a custom graphical user interface is easy with Mathematica. It involves control objects like Slider, Button, Pane or Manipulate objects, gauges (like AngularGauge, VerticalGauge, etc.), static GUI elements like Panel or Frame and the structuring and layout of these building blocks (using the Grid family). Questions about how to build small interactive softwares should use this tag.
Questions about general dynamic interaction and content (like Manipulate) should use the tag dynamic or manipulate. Questions about control objects and their properties should use the tag controls. Questions dealing specifically with dialog notebooks and windows may use the tag dialog-window.
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