Advantages of Dynamic Queries
over traditional query
language such as SQL
èMake Query Formulation Easy = Interact with Sliders and
Visual Objects
è (SQL = Structured Query Language
is difficult to master)
èSupport Rapid,
Incremental and Reversible Exploration
èShift Cognitive Load to Perceptual System
èSelection by Pointing
Tight Coupling of Interface
Components
èLink and Continuously Update the displays showing
specific “states” of software
è (“page number” and “scrollbar position” linked)
èè Linked Display and Controls
èImmediate Visual Feedback
èAvoid “Null set” by having current selection limit
further query refinement
èProgressive Query Refinement
èDetails on Demand
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