White Box and Black Box testing (1 Viewer)

[Winston]

Hey guys do we need to know the explicit details of both?

or just the basic purpose for both because i am not even getting one bit of the SDD Alan Fowler textbook explanation with the Statement Coverage, Decision, Multiple Decision, and Exhaustive testing for Whitebox, etc....

 

[Fosweb]

Not too sure how explicit.
I think knowing that white box is where you know what is going on inside, and black box is where you are only testing inputs and outputs should be enough.
I think alpha/beta testing is a little more important maybe.

 

[jizmiester]

isnt white and black box testing a part of alpha testing? anyway i thought only alpha/bata was on the syllabus anyway...

 

[Winston]

Originally posted by jizmiester
isnt white and black box testing a part of alpha testing? anyway i thought only alpha/bata was on the syllabus anyway...

White - Alpha

Black - BETA

 

[SamD]

Black/white box and alpha/beta testing are not mentioned in the syllabus specifically at all. However they're such fundamental testing techniques that you'd be mad not to understand what they mean, and more importantly when they're used and for what purpose.

The syllabus talks about different levels of testing and types of live test data used to test specific functionality. I'd go through each dot point under these two headings and think about the nature of both the testing and the test data used, maybe think up an example scenario for each of these.

HTH
Sam

 

[saves.the.day]

Originally posted by Winston
White - Alpha

Black - BETA

Incorrect.

White box testing: Tests the procedures, the pathways of each module or the boundaries.
Black box testing: Tests the inputs against the outputs and expected outputs

These are very different definitions compared to
Alpha testing: which is simply testing the solution with possible users (solution only made available to a select few or made available widely) when the solution is not a fully developed product. Alpha testing is when the product is made available yet it has never been tested outside the development environment.
Beta testing: After alpha testing, the prodcut may then be beta tested which is is testing the solution with a larger number of users by making it available to a larger cross section of the marketplace before it's actual release.

While white-black box testing and alpha-beta testing are types of testing and it is very easy to say that one is the other in an exam, you will definately not get full marks as these are completley different modes of testing.

White-black box testing coming under module testing and alpha-beta testing coming under live testing (testing solution with actual data that 'real' users would use).

-Lester