Features of top-down technique

  • Program preparation is stretched to a number of levels 
  • In place of writing long list of statements, the statements are separated into different modules at various levels.
  • The stretching is most general to most specific.
  • Program is structured as hierarchy of various tasks.
  • As the techniques moves from top to bottom, it is a type of specialization.
  • Main module can be designed well before without requiring details of complete design.
  • Testing can be done after inserting down level modules one-by-one.
  • Parallel development is possible because of top and down level modules design.


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