Thanks:  0
Likes:  0
Dislikes:  0

Thread: Some balck box Testing technique

1. Some balck box Testing technique

Boundary value analysis
A technique that consists of developing testcases and data that focus on the input and output boundaries of a given function.

Equivalence testing
let me explain with example - a program which edits credit limit within a given range(\$10000-15000) would have three equivalence classes i.e <10000 is invalid, >15000 is invlaid, >10000 and <15000 is valid

Any suggestion or question

2. Re: Some balck box Testing technique

your example may have additional classes rather then just the three, as there is not enough context to qualify that or refute it either.

Non Numerics might be a equivalance class for invalid inputs too, for starters. Non \$ inputs might also have equivalent properties.

Also the statement does not give a valid point for the boundary in these clasess as:
<10000 is invalid and >10000 is valid therefore 10000 is a boundary but its status (valid, invalid has not been defined - this pattern is repeated with the upper boundary) and neither has the level of decimal places or rounding behaviours, which may also provide additional classes.

3. Re: Some balck box Testing technique

Less than \$10000(invalid)
Between \$10000 and \$ 15,000(vaild)
greater than \$15000(invalid) i hope this may be clear

Thanks for you're reply Neill

4. Re: Some balck box Testing technique

If the boundaries are not externally visible to the end user then is this not a form of white box testing?

5. Re: Some balck box Testing technique

If they are not visable then indeed it is whitebox as it will be based on the logic, I was assuming as the question called then blackbox these were visable, say on the GUI for data entry as min/max values next to the revelant field.

6. Re: Some balck box Testing technique

True, I was probably just being a bit pernickety in my last comment.

7. Re: Some balck box Testing technique

Most of us are though. It is part of our vocation, a hazard of the trade [img]images/icons/wink.gif[/img]

Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•
Search Engine Optimisation provided by DragonByte SEO v2.0.36 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 10.34%
vBulletin Optimisation provided by vB Optimise v2.6.4 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging v3.2.8 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
vBNominate (Lite) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Username Changing provided by Username Change (Free) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
BetaSoft Inc.
Digital Point modules: Sphinx-based search
All times are GMT -8. The time now is 06:27 PM.