prototyping

from The Free On-line Dictionary of Computing (8 July 2008)
prototyping

   The creation of a model and the {simulation} of all aspects of
   a product.  {CASE} tools support different degrees of
   prototyping.  Some offer the end-user the ability to review
   all aspects of the {user interface} and the structure of
   documentation and reports before code is generated.
    

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