Software test interview questions: the steps to write test cases by drawing cause and effect diagrams are___ And transforming the cause and effect diagram into a state diagram in five steps. What are

The steps to write a test case by drawing a cause and effect diagram are ___、___、___、___ There are five steps to transform cause effect diagram into state diagram . The basic steps of using cause and effect diagram to generate test cases are as follows ？

Analysis software specification description , What are the reasons （ Input conditions or equivalent classes of input conditions ）, What are the results （ That is, the output condition ）, And give each cause and result an identifier .

Analyze the semantics in software specification description , Find out between the cause and the result , What is the corresponding relationship between the cause and the cause ? According to these relationships , Draw a cause and effect diagram .

Due to grammatical or environmental constraints , Between some causes , The combination of cause and effect is impossible . To show these special circumstances , Mark constraints or restrictions on the cause and effect diagram with some marks . Turn the cause and effect diagram into a decision table .

Take out each column of the decision table as the basis , Design test cases .

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