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1.3.5. Unit-Summary

Interactivity is the dialog that occurs between a human being and a computer program (Whatis.com).

Input and Output Actions

The main input and output actions wihtin the field of interactivity are:

  • Mouse Click
  • Click and Drag
  • Rollover
  • Key Stroke

Client and Server Side Interactivity

Interactivity can be processed either on the client side or on the server side. Depending on the interactity that is to be implemented it is better to process it on the client or on the server side.

Typical client-side interactions are:

  • Mouseover effects
  • Pan or zoom within map

Typical server-side interactions are:

  • Database queries
  • Read and write files and directories
  • GIS computations


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