February 22, 2009

Explain Unit Testing, Interface Testing and Integration Testing. Also explain the types of Integration Testing in brief.

Unit Testing

Unit Testing is done to check whether the individual modules of the source code is working properly. i.e Testing each and every unit of the application separately by the developer in developers environment.

Interface Testing

Interface Testing is done to check whether the individual modules are communicating properly one among other as per the specifications.

Interface Testing is mostly used in testing the user interface of GUI applications.

Integration Testing

Integration Testing is done to check the connectivity by combining all the individual modules together and test the functionality.

The types of Integration Testing are,

1) Big Bang Integration Testing

In Big Bang Integration Testing, the individual modules are not integrated until all the modules are ready. Then they will run to check whether it is performing well.

In this type of testing, some disadvantages might occur like,

Defects can be found at the later stage.

It would be difficult to find out whether the defect arouse in Interface or in module.

2) Top Down Integration Testing

In Top Down Integration Testing, the high level modules are integrated and tested first. i.e Testing from main module to sub module. In this type of testing, Stubs are used as temporary module if a module is not ready for integration testing.

3) Bottom Up Integration Testing

In Bottom Up Integration Testing, the low level modules are integrated and tested first i.e Testing from sub module to main module. Same like Stubs, here drivers are used as a temporary module for integration testing.

Bookmark this Blog to your Favorites


Blogger vid said...

very nice...... Thanks alot

12:32 PM  
Blogger Quality Assurance said...

Read all the related Posts:

64 Software Manual Testing Interview Questions

Answers To Common Job Interview Questions

Behavioral Questions In Interviews

Questions to Ask at an Interview

Competency based Interview Questions

9:08 PM  
Blogger SoftwareQATestings.com said...

Here is one more example on this:Test cases for input box which accepts numbers between 1 and 100 using Boundary value analysis:Test cases with test data exactly as the input boundaries of input domain i.e. values 1 and 100 in our case.Test data with values just below the extreme edges of input domains i.e. values 0 and 99.Test data with values just above the extreme edges of input domain i.e. values 2 and 101.

For more examples visit 5 Boundary Value Analysis Examples

Thanks Dav

9:42 PM  
Blogger SoftwareQATestings.com said...

Writing test cases is one of the major and most important activities which any tester performs during the entire testing cycle. The approach for writing good test cases will be to identify, define and analyse the requirements.
When you begin writing the test cases, there are few steps which you need to follow to ensure that you are writing good test cases

If you are interested then also go through the following article to check a step by step approach to write a good test case:

How to write a good test case?

9:42 PM  
Blogger SoftwareQATestings.com said...

If by STLC you mean Software Testing Life Cycle, the domain is very broad.

The typical steps of STLC are:
- Pinpointing Requirements and creating Use Case Documents
- Defining a Test Plan
- Defining Test Cases
- Executing Test Cases
- Bug Analysis and Reporting
- Retesting the reported bugs, after bug fixing sessions.

It's about defining interaction scenarios from the point of view of the future user(s), performing walk-troughs and reporting possible problems to the development team(s), in a structured standardized manner.

The requirements analysis is actually a part of the Software Development Life cycle, but is required in the testing stage.
What is the difference between SDLC and STLC?

9:42 PM  
Anonymous Anonymous said...

It’s not close to being relevant to the internet, nonetheless my lady
just passed and observed the saying digg on screen.
In her own little brown eyes, she seriously observed booger,
as well as asked me precisely why I had been studying about boogers.

I personally haven’t chuckled over-time in some days.
My weblog ... Criminal Record

8:56 AM  
Anonymous Anonymous said...

Hang on! Or maybe never! I recently wrote to Jim’s
e-mail target originating from a distinct area and also this period Some receive an
problem meaning. Meaning they probably bought the content he
or she desired through myself (bank-account amount, and so on) and from now on blocked my own
e-mail deal with by having an problem sales message which suggests
“Eric’s e-mail handle just isn't good anymore”, but it’s almost certainly working yet again. Substantiation is definitely I directed a phone message to help the address originating from a several place (considered one of my alternative e-mail address) i could not recieve an mistake message… darn…tghthgthgg Carlos please help me observe our curriculum vitae as part of your company. I've currently
sent our resume for your firm electronic mail,
you should We need the vital answer.
Also visit my web blog : Cheap Young Drivers Car Insurance

9:53 AM  
Anonymous Anonymous said...

very nice...... Thanks alot

5:08 AM  
Anonymous Anonymous said...

Pretty! This was an incredibly wonderful article. Many thanks for supplying this info.
My web page :: play online

8:01 AM  
Anonymous Anonymous said...

Perhaps you should create changes towards web site brand for you to something more different.
I first engaged not one but two some other results, simply because they have a superior subject.

Although things i needed I came across the following.
Have a look at my web blog ; Remove Genital Warts

10:51 AM  
Anonymous Anonymous said...

An interesting discussion is definitely worth comment. I do
believe that you should publish more about this topic, it might not be
a taboo matter but generally people do not talk about such topics.

To the next! Many thanks!!

my weblog: http://www.xbox-360-kinect-spiele.de

7:20 PM  
Anonymous Anonymous said...

I've been browsing online more than three hours today, yet I never found any interesting article like yours. It's pretty worth enough
for me. In my view, if all website owners and bloggers made good content as
you did, the internet will be much more useful than ever before.

My web-site bkk-Lv-nw.de

9:15 PM  
Anonymous Anonymous said...

Ι think this is among the most important information for me.
And i'm glad reading your article. But want to remark on some general things, The website style is wonderful, the articles is really great : D. Good job, cheers

my blog post: options trading

10:09 AM  
Anonymous Anonymous said...

Hi it's me, I am also visiting this web site regularly, this website is genuinely nice and the viewers are in fact sharing pleasant thoughts.

Here is my site :: www.Raa-Oshawa.dmt.net

10:38 AM  
Anonymous Anonymous said...

I enjοy whаt yοu guyѕ tеnԁ to be up tοo.
This typе of сlever woгk and eхpοsure!
Κeep uρ the fantastic ωorks guys I've incorporated you guys to our blogroll.

Also visit my web site :: More Signup bonuses

12:18 PM  
Anonymous Anonymous said...

I гeaԁ this articlе fully аbout the comρaгiѕon of hottest and ρгeceding technologies, it's awesome article.

My web blog :: jzug.org

5:46 PM  
Anonymous Anonymous said...

Hey theге! Would you mіnd if ӏ
share your blοg with my facebook group? Therе's a lot of folks that I think would really enjoy your content. Please let me know. Thanks

Take a look at my web page ... stock options training

10:37 PM  
Anonymous Anonymous said...

What's Going down i'm new to this, I stumbled upon this I've discovered It positively useful and it has aided me out loads. I hope to give a contribution & help different customers like its aided me. Good job.

My homepage www.upsure.co.za

11:51 PM  
Anonymous Anonymous said...

Attractive section of content. I just stumbled upon your weblog and in accession
capital to assert that I acquire in fact enjoyed account your blog posts.
Anyway I will be subscribing to your feeds and even I achievement you access consistently rapidly.

My homepage - Click In this article

11:13 PM  
Anonymous Anonymous said...

Hi, its fastidious piece of writing about media print, we all be aware
of media is a fantastic source of information.

my blog: www.clubpolitic.ro

11:13 PM  
Blogger TestWithUs said...

SWIFT Interview questions on


For selenium solution visit

For QTP interview questions



10:40 AM  
Anonymous Anonymous said...

Keep on writing, great job!

my website cccam emm not interested in

3:56 AM  
Anonymous Anonymous said...

Fantastic beat ! I wish to apprentice while you amend your
site, how could i subscribe for a weblog website? The account aided me
a appropriate deal. I had been a little bit acquainted of this your broadcast offered bright clear idea

Here is my web page; code for channel five On sky

5:25 AM  
Anonymous Anonymous said...

Hi! I could have sworn I've been to this website before but after reading through some of the post I realized it's new to me.
Anyways, I'm definitely happy I found it and I'll be bookmarking and checking back often!

Look into my web-site :: book of ra tricks cheats

3:44 AM  
Anonymous Anonymous said...

What nationality will be the most eye-catching men/women and
what nationality has the ugliest men/women ?

Review my web blog :: female mind mastery review

7:26 AM  
Anonymous Anonymous said...

Scholars aren't artists or entrepreneurs. You appear to become genuinely defensive of this online video and attacks on our currently outdated education technique. Let me put the query? back on you. Why would you feel English, math, and science ought to be placed at a considerably higher worth than art? Almost everything we wish to buy has an art/creativity component: shoes, phones, tablets, cars, movies, good dining, clothes, vacation resorts - but we do not educate creativeness or entrepreneurial skills in general public college.

Look into my blog post :: 60 minute stamina members login

4:38 PM  
Anonymous Anonymous said...

you're really a excellent webmaster. The site loading pace is amazing. It kind of feels that you are doing any unique trick. Also, The contents are masterwork. you've done a wonderful task on this topic!

Look into my homepage - hon Office Furniture clearwater

10:39 PM  
Anonymous Anonymous said...

Definitely imagine that which you stated.
Your favourite justification seemed to be at the net the simplest thing to be mindful
of. I say to you, I definitely get irked even as other people consider concerns that they plainly don't recognize about. You managed to hit the nail upon the highest as smartly as outlined out the whole thing without having side-effects , other people can take a signal. Will likely be again to get more. Thanks

Here is my site - attraction marketing formula llc

7:25 AM  
Anonymous Anonymous said...

I would like to watch this as a start of a good change of
opinions and views, and you should spare the moral feedback
..... I prefer to believe that the truth is really a game
of perspectives and reality, if there is discussion then there's an in-balance, and there where the fun starts ..

Here is my blog post :: do any weight loss supplements actually work

12:14 AM  
Anonymous Anonymous said...

None of them will die since each of them are immortals DAVID .

my homepage :: Premature ejaculation pills

3:36 AM  
Blogger Sandeep Dahiya said...

Unit Software Testing = The unit testing features of Visual Studio 2012 were shown to be an effective way to improve software quality by introducing various tests.

3:34 PM  

Post a Comment

Subscribe to Post Comments [Atom]

<< Home