Testingis necessary to increase the quality of the project. Testing is most time consuming, but a crucial activity of a software project.
Testingis needed not always for improving product and project quality but also for improving company quality. Without testing company can't grow at the upper level.
It is vital to the success of new system. For making the project reliable and Error Free, the complete project and product must be tested in a systematic and organized way.
DEFINITION OF TESTING
Its a Risk reduction process and measurement of Quality.
WHY NEED OF TESTING
It is remarkably performed for one of the two reasons: -
1. Bug Detection
2. Improvement belonging to quality
Testingis needed not always for improving product and project quality but also for improving company quality. Without testing company can't grow at the upper level.
Testingis needed for almost all the organization which wants to grown up easily. Testing is needed for properly understand the fault errors in software during its development phases.
Testingis necessary in software development. It always ensures the users satisfaction and reliability of affecting software.
Below given the example which clears why testing is necessary: -
For Example if a company works on some long projects, and delivers those projects to the client without doing the proper testing, and after delivering the projects to client if client found some big bugs on the projects, than at that time it is the ashamed for company.
And obviously that client never comes back for having testing of their projects so it's harm to company and apart from loss company quality is also decreasing so testing is needed.
Conclusion: -
At last we conclude it's a fact that, when specific person starts checking commodity which is prepare by some other person, there are definitely 99% chances that checker and observer will discover some problem with the system. So it clears testing is needed.
Before us proceeding towards the Difference between Functional and Non Functional Testing it is very important for us to first take a brief look at Functional and Non Functional Testing.
Functional and Non Functional Testing is what?
Functional testing is performed using the functional specifications provided by the client or you can say by using the design specifications like use cases provided by the design team.
In this, tester has to test the application to see that all requirements of the client which he has said in SRS and BRS have been incorporated or not.
Non Functional Testingis that which is always concerned with the client expectations like performance, load and stress issues and so on.
Distinction between Functional and Non Functional Testing
Functional Testing
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Non- Functional Testing
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1. In functional Testing tester tests how well the system performs.
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1. In Non-Functional Testing tester tests how well the system responds.
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2. Functional Testing is based on client requirements.
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2. Non- Functional Testing is based on client expectations.
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3. Functional Testing means Testing the application against business requirements.
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3. Non- Functional Testing means Testing the application against clients and performance requirements.
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4. It is a part of System Testing.
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4. It is also a part of System Testing
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5. Functional Testing Validating the behavior of application.
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5. Non- Functional Testing Validating the performance of application.
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6. This Testing covers Unit Testing, Integration Testing, Smoke Testing, Sanity Testing, Regression Testing and so on.
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6. This Testing covers Load/Performance Testing, Stress/Volume Testing, Security Testing, Installation Testing and so on.
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7. It is always concentrating on customer requirements.
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7. It is always concentrating on customer expectations.
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8. Functional Testing means how is your system is doing.
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8. Non- Functional Testing means how well your system is doing example usability, performance and stress testing.
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Distinction between Sanity and Regression Testing
Sanity Testing
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Regression Testing
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1. Sanity testing is a surface level testing where QA engineer verifies that all the menus, functions and commands available/presented in the product are working fine.
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1. Regression testing is not a surface level testing.
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2. Sanity testing is considered as a subset of regression testing.
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2. Regression testing is not considered as a subset of any.
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3. This testing is performed/executed when testers have not much/enough time for doing testing.
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3. This testing is performed/executed when tester�s have enough time for testing.
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4. Sanity testing is usually conducted manually not by using any automation tools.
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4. Regression testing may be conducted/consider manually or using automated tools.
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5. Performing this type of testing will not enlarge the product/project cost and budget because it didn't require much manpower and time.
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5. Performing this type of testing definitely will enlarge the product cost and budget because it requires more manpower and time.
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6. Not complete test cases are executed/ performed in the product during sanity testing.
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6. During this testing complete test cases are executed/ performed in the product.
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7. During this testing tester test the application or product with finer details.
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7. During this testing tester test the application or product with more details.
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8. We do not use script for sanity testing.
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8. We use script for regression testing.
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Conclusion
At end we conclude that these are the quick and simple Differences between Sanity and Regression Testing in tabular form but the main difference is in its use. We use Regression Testing when we have enough time for Testing, and we use Sanity Testing when we do not have enough time for Testing.
But keep one thing in mind that purpose of both the Regression and Sanity Testing is same; the only difference is in its use.
Random Testing is also confused with Monkey and GorillaTesting but it is obviously different from Monkey Testing and Gorilla Testing. Here I am writing the post on Random Testing which clears what a Random Testing is and how it is different from Monkey and Gorilla Testing.
Random Testing � Complete Guidance
Random Testing is a black box test design technique where test cases are always selected randomly means by using an algorithm named pseudo random generation, which is used to match an operational profile. This technique of Random Testing is always used for non functional testing attributes such as performance and reliability points.
Random Testing Approach and Method
As the name gives you the answer there is no specific approach to perform the Random Testing because it is an ad-hoc way of software testing. In Random Testing tester always picks some modules randomly to test by giving inputting random values.
Random Testing is a method which is always used to exercise a class. Random Testing is totally based on developing a randomly based test sequence that always tries the minimum number of operations usually to the behavior of the class.
Random Testing Example - Proper Guidance
Below is given the best example on Random Testing which clears more means what a Random Testing is all about.
For example you are testing a website which is full of images means website is totally based on images and there is less content on that. Now as you know it is time consuming to test all the images so you randomly select some images to test than it is Random Testing.
Suppose there is a page name Samsung Mobile and there are fifty images on it so it is almost impossible to test all these images manually but you test the images randomly to check whether they are displaying properly or not means there is no broken images on that page. You test the images randomly like firstly you test the first image than you leave the next two images than you test the 4th image and so on.
So in this way you perform the Random Testing by testing the images randomly means you do not test all the images instead you test it randomly.
What you say � Feedback Welcomed
This is all I know regarding Random Testing now what you say about this testing means how much you like the post and what suggestions you want to give because your feedback are always welcomed, so give your opinion and thoughts to help others regarding the very spectacular post of Random Testing.
System testing is used to verify the working of the whole system all together. System testing involves both functional and non functional testing.
2. Comprise a different tests series to fully exercise the computer-based system.
The formation about testing an integrated system to check that it meets or follows requirements that are specified is known as system testing.
Basic Purpose of System Testing is to:
1. Ensure that a system or application meets its specification and any non-functional requirements (such as stability and throughput) also meets the requirements with its users.
2. Comprise a different tests series to fully exercise the computer-based system.
3. Confirm an application's or system accuracy and completeness in performing the designed functions.
Conclusion:
System testing means testing of the entire software. The main purpose of system testing is to detect whether the software meets its requirements or not.
