People are confusing regression testing definition with its meaning and approach although they look like similar but there are few minor changes on regression testing meaning and approaches which are shown below.
Regression Testing Meaning is given below:
Regression Testing Definition with Example
Checking that fixed bug do not affect the other sections of the modules by checking the functionality and other scenarios of testing on different modules and within the similar module in which bug is fixed is known as regression testing.
Note:Do not confuse regression testing with re-testing because in re-testing tester only test whether the fixed bug is getting fixed or not by re-testing it.
On the other hand in regression testing tester only tests that fixed bug do not affect the other parts of the modules and do not bother and take less stress about whether the bug is fixed or not.
Exact Meaning of Regression Testing
Regression Testing Meaning is given below:
Regression Meaning is relapse or reverting so meaning of regression testing is "relapse testing" means it is done in two situations or you can shortly say in two conditions.
1. First condition is after fixing the bug by checking and ensuring that fixed bug does not affect the other parts and functions of the modules.
2.Second condition deals with change in requirements means when client change the previously done requirements than tester have to test that changing requirements do not affect the other requirements of the application which are done means completed.
Significant Approach of Regression Testing
Regression Testing Approach is given below:
As you know there are two approaches for integration testing like top down integration and bottom up integrationsimilarly we have the two approaches for regression testing.
1. First approach is doing the regression testing when bug is fixed.
2. Second approach is doing regression testing when change in requirements of the client.
Software testing is the mechanism of knowing that what's the expected result and what the actual result a software project or product has given.
1. Short-term or immediate goals of software testing: - These goals are the immediate results after performing testing. These goals even may be set in the individual phases of SDLC. Some of them are completely discussed below:
Conclusion
You simply say that software testing is nothing but validation and verification. Main goal of software testing is to ensure that software should always be defect free and easily maintained.
IMPORTANT GOALS OF SOFTWARE TESTING
1. Always Identifying the bugs as early as possible.
2. Preventing the bugs in a project and product.
3. Check whether the customer requirements criterion is met or not.
4. And finally main goal of testing to measure the quality of the product and project.
1. Short-term or immediate goals of software testing: - These goals are the immediate results after performing testing. These goals even may be set in the individual phases of SDLC. Some of them are completely discussed below:
a) Bug discovery: The immediate goal about software testing is to find errors at any stage of software development. More the bugs discovered at early stage, better will be the success rate about software testing.
b) Bug prevention: It is the consequent action of bug discovery. From the behavior and analysis of bugs discovered, everyone in the software development team gets to learn how to code so that bugs discovered should not be repeated in later stages or future projects.
Though errors always cannot be prevented to zero, they can be minimized. In this sense prevention of a bug is a superior goal of testing.
2. Long-term goals of software testing: - These goals affect the product quality in the deep run, when one cycle of the SDLC is over. Some of them are completely discussed below:
a) Quality: Since software is also a product, so its quality is primary from the user's point of view. Thorough testing ensures superior quality.
Quality depends on various factors, such as correctness, integrity, efficiency, and reliability. So to achieve quality you have to achieve all the above mentioned factors of Quality.
b) Customer satisfaction: From the user's perspective, the prime goal of software testing is customer satisfaction only. If we want the client and customer to be satisfied with the software product, then testing should be complete and thorough.
A complete testing process achieves reliability, reliability enhances the quality, and quality in turn, increases the customer satisfaction.
3. Post-implementation goals of software testing: - These goals are become essential after the product is released. Some of them are completely discussed below:
a) Reduced maintenance cost: The maintenance cost about any software product is not its physical cost, as effective software does not wear out. The only maintenance cost in a software product is its failure due to errors.
Post- release errors are always costlier to fix, as they are difficult to detect. Thus, if testing has been done rigorously and effectively, then the chances about failure are minimized and as a result of this maintenance cost is reduced.
b) Improved software testing process: A testing process for one project may not be blooming successful and there may be area for improvement. Therefore, the bug history and post-implementation results can be analyzed to find out snags in the present testing process, which can be determine in future projects.
Thus, the long-term post-implementation goal is to improve the testing process for future projects.
Conclusion
At end in one line we conclude that main goal of software testing is to show that application is working as per as the requirements defined by client.
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.
Testingis the most time consuming, but a needful activity of a software project. It is vital to the success of new system.
The main Purpose of testing is to:
1. Measure the quality of the software
2. Find out the faults in the application and software
3. Reduce the number of bugs in the program.
4. Check all the requirements and specifications given by client and customers are met or not.
5. Produce a product which is full of quality oriented.
6. Comfort the need of client and customers.
7. Provide a defect and error free software.
8. Check whether the application is working as per the functional requirement specified or not.
9. Carry the difference between the expected and actual results.
Important purpose of testing is to increase the project and product quality, and definitely to increase the organization quality side by side also.
Conclusion:
At end we conclude that during software testing, the test engineer needs to discover as several bugs as possible before reaching those defects to client, which will definitely save lots of time and money.
Regression Testing may definitely be performed manually, and it is also performed by re-executing a subset of complete and full test cases or by using some sort of automated capture playback tools too.
Regression testing will be considered after a bug fixed or when any area of functionality changed. During bug fixing method some part of coding may be changed or even functionality may be also manipulated so due to this change we have to perform Regression Testing.
SOME BENEFITS OF REGRESSION TESTING
1. Regression testing increases our chances of detecting bugs caused by changes to a software and application- either enhancements or defect fixes. Also keep one thing in mind that we also don't give any sort of guarantee that for performing regression testing there are never any sort of side effects also.
2. Regression testing also detects undesirable side caused always by changing the operating environment.
3. The set about regression test is much useful for a new way about doing integration testing. This new mode is quite faster and little confusing than the old way about doing integration testing- but you always need a some sort of set about regression test to do it.
Regression testing will be considered after a bug fixed or when any area of functionality changed. During bug fixing method some part of coding may be changed or even functionality may be also manipulated so due to this change we have to perform Regression Testing.
Conclusion:
At end we conclude that regression testing may be considered manually or using some sort of automated tools too.
The purpose behind regression testing is very simple and straight. We obviously know that changes to an existing sort of system often cause some other things to break and decline.
1. Non execution based testing means the module is always reviewed by a team. The non execution based testing relies on fault detection strategy.
2. White-box testing: It is the sort of testing in which the code itself is tested, without regard of the specifications.
Conclusion:
The fault-detecting power of these non-execution based testing techniques leads to rapid, thorough, and early fault detection.
Non-execution based testing is also known by the name static testing or you can say by static program analysis.
2. Execution based testing: - On this execution based testing the modules are run against test cases. Following are the two ways of systematically constructing test data to test a module.
There are two types of execution based testing:
1. Black-box testing: It is the sort of testing in which the code itself is ignored; the exclusive information handle in designing test cases are the specification document.
2. White-box testing: It is the sort of testing in which the code itself is tested, without regard of the specifications.
Conclusion:
At end we conclude that Non-execution based testing is also called as static testing and execution based testing is known as dynamic testing.
Component testing is that in which we test those test objects which are separately testable as a isolated unit without integrating with other components (e.g. modules, programs, objects, classes, etc.).
A group of component is known as module testing.
What is Component Testing?
Testing of separate software component is known as component testing.
Component Testing is considered as the Module Testing, because we are testing each module or component differently and effectively.
Suppose there is only a one project which consists of 10 components and we are testing each component differently and effectively than it is known as component testing.
Suppose there is only a one project which consists of 10 components and we are testing each component differently and effectively than it is known as component testing.
What is Module Testing
A group of component is known as module testing.
Component testing is fulfilled by programmers on the code written by them and with the support of development environment, such as a unit test structure or debugging tool.
For Example there are two web pages. In one of the web pages there are a many certain fields like username, address, mobile no. etc in which data has to be entered. In the other (second) web page also there are certain fields which carry forward the data from the first page. Testing the functionality of these individual pages is called Component Testing.
After component Testing we always done the Integration Testing. While doing proper black box testing and white box testing by tester first of all Component Testing is done.
After component Testing we always done the Integration Testing. While doing proper black box testing and white box testing by tester first of all Component Testing is done.
Before component Testing Unit Testing is always done by the developers. While doing proper Unit Testing the Developers run each functions and method of the Component effectively.
Conclusion:-
Component Testing is like "Unit Testing" with the difference that entire Stubs and Simulators are retrieved with the real objects. So here a Unit is a component, and integration of one or various such components is also a Component.