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A Brief Introduction to Different Software Testing Methodologies



Software testing is an important part of the development lifecycle. Inappropriate or poor testing methodologies can make your product buggy, unstable and a complete write-off. Consequently, it is vital to have a robust testing process to make sure your product is stable and works as planned.


Testing methodologies start from unit testing and include various types to usually end with whole functionality testing. In this article, we will give a brief introduction to different important software testing methodologies.

Here are some software testing methodologies needed for you to get a seamless end-product:

•Unit Testing: This is the initial level of software testing and usually performed by developers themselves. This ensures that the codes are functional as they were supposed to. This testing process can be run manually. However, many software testing companies follow automated processes to speed up this phase and even expand its coverage. Unit testing makes the debugging process easier since developers find issues in the initial phases itself.

•Integration Testing: In unit testing, every unit is tested thoroughly. After this, integration testing is performed to check whether each unit is integrated with other units or not. This process ensures that all the segments of the software behave as expected. Integration testing is often performed by keeping user scenarios such as logging/logout, opening files, etc. in mind. This testing can be conducted by independent testers or developers like a custom software development company. Integration testing comprises of a combination of both manual tests and automated functional tests.

•System Testing: This is a black box testing process. System testing is performed to verify the integrated system to make sure it meets all specified requirements. In this process, software functionalities are tested from end-to-end by specific (and skilled) testing teams.

•Acceptance Testing: Last stage of functional testing is acceptance testing. This testing is used to evaluate whether the final product is ready for delivery or need some changes. This testing involves making sure that the final product is as per requirements and business needs. Acceptance testing is all about testing the product internally and externally. An experienced team of testers conducts acceptance testing to find and address the possible issues.

•Performance Testing: It is the process where non-functional techniques are used to know how a software or application can behave under certain circumstances. The major goal of performing performance testing is to check software’s stability and responsiveness.

•Security Testing: In the last few years, we have seen a rise in the security concerns of cloud-based applications and software. To ensure the safety of the software, security testing is now a regular testing phase undertaken by the testing team. This testing checks if the data and information in your system are protected. The only goal of this testing is to find all possible loopholes and security risks that may allow unauthorised access. In security testing, key principles such as integrity, confidentiality, authorisation, authentication, availability, etc.  are verified by the testers.

•Usability Testing: This testing method measures software’s usability from the perspective of end users. Usability testing is performed during the acceptance testing. This method is for ensuring whether or not the final design and aesthetics of your software meet the intended workflow. Through this testing, you can review all the functionalities of the software as a whole.

•Compatibility Testing: This testing method is used to check how your software will perform on different operating systems, browsers, platforms and resolutions. The goal of compatibility testing is to make your software consistent and compatible across different environments.

A competent custom software development company follows all the above software testing methodologies to make the end-product flawless and error-free. 

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