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Requirement defining method, method for developing software, and method for changing requirement word, and newly defining method

  • US 20060130002A1
  • Filed: 09/09/2003
  • Published: 06/15/2006
  • Est. Priority Date: 09/09/2002
  • Status: Abandoned Application
First Claim
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1. A requirement definition method comprising:

  • (a) a step of extracting all output data items to be finally obtained by computer software which is a development object;

    (b) a step of prescribing one of the extracted output data items by a data generation equation and a data generation equation execution condition;

    (c) a step of prescribing all new data items by separate data generation equations and data generation equation execution conditions with respect to all the new data items that have appeared in order to prescribe the data generation equation and the data generation equation execution condition in said (b);

    (d) a step of repeating the step (c) until the data generation equation is constituted only of an input data item; and

    (e) a step of executing the steps (a) to (d) with respect to all the output data items to be finally obtained, and constituting requirement definition by the data generation equation and the data generation equation execution condition obtained as a result of such execution.

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