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Can anyone explain me these 3 techniques with an example?
1).Equalent Class Partision
2).Cause-Effect Graph analysis
3).Error Guessing.
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Answer Posted / sj1234
Consider any edit field which can accept values b/w 18-35.
Equivalence pertitioning In this method given i/p is
divided into number of equivalence classes.
From each equivalence class one i/p value is chosed for
testing.
Ex.Consider the above ex. edit field which accepts i/p
value b/w 18-35.
From the given range of i/p value we can form 3
equivalence classes.
i) Less than 18.
ii) Between 18-35.
iii) Greater than 35.
Take any value from three equivalence classes and test
them. example 6, 25,100
3) Error guessing.This depends on the tester experience,
domain knowledge, & common sense.
Ex:For the same above ex.i)23+,-34,5*,00,Blank,5o(Not
zero,O),etc.
4) Cause-Effect GraphCause Effect Graph: A Boolean graph
linking causes and effects
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