orthogonal array testing

[mangalsachin2002]

Hi Group!

can anybody explain me in detail wat is orthogonal array testing?

[sanereddy]

The first step in constructing an orthogonal array to fit a specific case study is to calculate the minimum number of tests that must be performed -- this is also called degrees of freedom

One degree of freedom is associated with the overall mean regardless of the number of parameters to be tested.

The number of degrees of freedom associated with a factor (parameter) is equal to one less than the number of levels for that factor.

The degrees of freedom associated with interaction between two factors A and B, are given by the product of the degrees of freedom for each of the two factors.


Degrees of freedom for interaction A x B


= (degrees of freedom for A) x (degrees of freedom for B)




check these links....

http://www.stsc.hill.af.mil/crosstal...0/planning.asp
http://www.developsense.com/testing/...seTesting.html
http://guinness.cs.stevens-tech.edu/...20week%202.ppt

hope this helps...
I will let you know if I find any more information or tutorial...