1. ## Domain partitioned

i would like to understand what is the term Domain partitioned mean in testing and how could i use it ???

2. ## Re: Domain partitioned

I've never heard of it. [img]images/icons/blush.gif[/img]

But I did run a little Google Search and found a couple of papers out there;

Mass Assignment Methods for Machine Learning by Edward J. Wakeman
http://www.enm.bris.ac.uk/teaching/c...6800/intro.htm

A Taxonomy for Domain Partitioning and Reuse by by Mike Frankel and Becky Winant
http://www.espritinc.com/pages/libra...blished/4.html

Neither of them seem to be applicable to software testing though. Where did you hear that this is applicable to testing? In what context?

3. ## Re: Domain partitioned

actually i've heared it from a professional QA's ..
but i didnot dig in immediately...

4. ## Re: Domain partitioned

I agree with Cem Kaner.
Domain Partitioned means you are dividing the input values to test the target function.
Like :
- We will take one valid and two invalid values for testing the target function.
e.g. I am having the input value say "a" for testing a given function.
So I divide the input value into three values for testing this function and these would be - ("a", "-a", "+a") or ("a", "Value less than a", "Value greter than a"). this is also termed as boundary value analysis.

Devender.

5. ## Re: Domain partitioned

Domain partitioning is the most widely practiced software test design method.

We partition (subdivide) a domain (the set of all possible inputs to a function) into sub-domains (subsets, aka equivalence classes) and then choose members of each set to test, as representatives of the set. Typically in a linearizable domain (one whose inputs can be mapped to a number line), we choose boundary values as the representatives of the set.

The best single article on the topic is probably
J. Ostrand and M. J. Balcer. The category-partition method for specifying and generating functional tests. Communications of the ACM,. Communications of the ACM, 31(6):676 -- 686, June 1988

There are extended discussions of the approach in Glen Myers, Art of Software Testing; Kaner et al's Testing Computer Software; Binder's Object-Oriented Testing; Jorgensen's Software Testing: A Craftsman's Approach, and Beizer's Black Box Software Testing.

For the mathematically unchallenged, I think Jorgensen provides the best presentation in print. For gentler introductions, I think Myers and my books are both suitable.

6. ## Re: Domain partitioned

but can you provide me with more Examples ?

7. ## Re: Domain partitioned

but can you provide me with more Examples ?
<font size="2" face="Verdana, Arial, Helvetica">[img]images/icons/confused.gif[/img]

My friend, it looks to me like you've been given examples and reading material enough to last you a couple of weeks.

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