October 20, 2017 IconSunil KumarIconDevelopment ,

Understanding Software Testing Levels

Software testing is a critical aspect when it comes to software development. It's a process of checking if the software product meets the user's requirements and whether its output is as expected.

Software testing solutions ensure that a software system is validated and verified before it reaches the end-user. It is a process of executing an application to find software bugs. The process ensures that the product meets the business requirements and its technical needs that initiated its development.

There are different levels of software testing process. These levels fall under two primary methods:

  • Black Box Testing: This method does not involve the internal functioning of a software system. It seeks to test if the software performs as it should.
  • White Box Testing: This method involves the internal structure of a system. It entails finding out software works and if the individual units of the system perform their vital functions for a particular output.

Software testing levels incorporate the above methods depending on which level of testing the software has reached.

4 Levels of Software Testing

The four software testing levels include:

Unit Testing

In this level of software testing, each unit is isolated and tested on its own to see how it performs its function. The testing team executes the test and validates each particular code and observes if their performances are up to their expectations. This level of testing falls in the white box testing category.

Integration

The level falls under the black box testing method. Here, the software's subsystem components are combined as a complete integrated system and tested as a whole. This aims to check if the software executes its functions as expected. Here, the tester is looking to see if there are any defects that could stop the system from performing its function.

System Testing Level

It’s a black box testing method that seeks to find if the software performs its operations when put under different environments. The overall product of the system is evaluated by a specialized testing team in an almost real environment to determine if it meets the business requirement specified.

The software is tested thoroughly to ensure that it meets its functional and technical specifications.

Acceptance

In this level, the software's functionality is put to use on the real user. It's a crucial stage for it seeks approval from customers. The end users put the product to test to see if it meets their needs efficiently.

The customer observes the system's performance, features, speed and overall output. The customer then is expected to give feedback to the developer.

Conclusion

Software testing solutions ensure that there is a proper assessment and evaluation of the system before it’s released as a final product. A software system needs to have each unit code performing its functions for an integrated output.

Acceptance of the final product is essential to the developer; it means that he addressed the clients’ needs adequately. Software testing levels, if carried accordingly, save costs as defects can be detected and rectified early.

Testing saves time as proper planning leads to the use of the right procedures. It minimizes the risk of a software failure as problems get handled at their initial stage.

Understanding Software Testing Levels

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