Static vs Dynamic testing

Hello dear reader! It’s me again with some more types of testing that I think it will be very useful for you to know.

Both Static and Dynamic Testing are two other types of testing very important for testers and developers as they are part of the Software Development Life cycle. The decision for which of these two tests to use would come from the company you will be working for. However, it is very important for you to know what they are and where to use them as you might be asked to give your opinion and you don’t want to give a wrong answer!!!

Dynamic Testing is performed when the code is in the operation mode, in run time environment. When a value is inputted to the code, the output of the code is checked and compared with the different expected output. Dynamic testing is also known as a validation testing, evaluating and finished product. With this we can observe the functional behavior of the software, CPU response time, performance of the system and monitor the system memory.
Dynamic Testing has a few techniques like: Unit Testing – Integration Testing – System Testing – Acceptance Testing (please see the previous blog for a better explanation of these techniques).

Static Testing is the type of testing where the code is not executed. This type of testing can be performed by tools or manually. This type of testing checks the code, requirement documents and design document and puts under review comments on the work of the document. Static Testing it is usually called verification testing as it is started earlier in the development life cycle. This type of testing can be done on work documents, design documents, source code, test scripts, web page, test cases and test plans.
Just like the Dynamic Testing, Static Testing has also its technique: Inspection – Walkthrough – Technical Reviews – Informal reviews (there will be another separate blog to discuss about these techniques).

But what are some of the differences between these two types of testing?

As mentioned above Static Testing is a performed in an early stage of development, before deployment while the Dynamic testing is performed at the later stage of development life cycle, after deployment. While the Static Testing doesn’t use the execution of the code, executing the code in the Dynamic Testing is a must. Also another difference would be that Static Testing has more statement coverage  than dynamic testing in shorter time.

In general I choose to write about all types of testing as I think it is very important to be aware of them. Different situations, different projects, different code, different stage requires different type of testing. Knowing which way to test is just as important as knowing how to write code for a software.

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