What is Boundary Value Analysis

BVA is similar to Equivalence Partitioning but focuses on "corner cases" or values that are usually out of range as defined by the specification. It means that if a function expects all values in range of negative 100 to positive 1000, test inputs would include negative 101 and positive 1001.

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Jul 30th, 2005
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suman Pradhan

Sep 29th, 2005

the answer posted does nt seem to be complete

Shivacharan.D

Dec 13th, 2005

BVA(Boundary Value Analysis) is a technique to find whether our applicaton is taking required range of values and rejecting the values which fall out of range where as ECP(Equivalence class partition) is to check whether given input value is valid or invalid.Both this concepts come under Input Domain Coverage of Functionality Testing.
Example:whether User id textbox accepts alphanumerics of length 4 to 10 characters.
BVA: max value:10 pass;
max-1: 9 pass;
max+1=11 fail;min=4 pass;min+1=5 pass;min-1=3 fail;
In this way we check corner values and conclude whether our appln is taking correct range of values.

sudhakar2068
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Sep 14th, 2006

Boundary Value Analysis: In boundary value analysis, test cases are generated using the extremes of the input domaini, e.g. maximum, minimum, just inside/outside boundaries, typical values, and error values. BVA is similar to Equivalence Partitioning but focuses on "corner cases".
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Sujatars
Profile Answers by Sujatars

Mar 20th, 2007

Boundary value Analysis is a technique in which test data is chosen from the boundaries or inputs or output data structure ,Choices often include the actual minimum & maximum bounday values ,the maximum values plus or minus one and mininmum value plus or minus one.