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Question: Why Boundary Value Analysis is more comprehensive than Equivalence Class Partioning?
Answer: Generally we use BVA and ECP for validating the input values. We can't check all the values that it allows, as it takes much time. For example a text box should allow only 10 characters and no special chars and no digits should be allowed. In BVA, we just check whether the text box is allowing only 10 chars or not? we don't bother about the special chars, alphabets and digits In ECP we divide the input values into valid and invalid Valid: a-z A-Z Invalid: 0-9 all special characters
checking the text box with invalid values is also called as negative testing.
If the condition is like below Text box should allow all values including digits, alphabets, special chars. then there is no need of ECP. because all keyboard inputs are valid. and there is no invalid input.
So, to check the validations we need both ECP and BVA.
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Question:
Why Boundary Value Analysis is more comprehensive than Equivalence Class Partioning?
Answer:
Generally we use BVA and ECP for validating the input values. We can't check all the values that it allows, as it takes much time. For example a text box should allow only 10 characters and no special chars and no digits should be allowed. In BVA, we just check whether the text box is allowing only 10 chars or not? we don't bother about the special chars, alphabets and digits In ECP we divide the input values into valid and invalid Valid: a-z A-Z Invalid: 0-9 all special characters
checking the text box with invalid values is also called as negative testing.
If the condition is like below Text box should allow all values including digits, alphabets, special chars. then there is no need of ECP. because all keyboard inputs are valid. and there is no invalid input.
So, to check the validations we need both ECP and BVA.
Source: CoolInterview.com
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