Static testing and Dynamic testing

Static testing and Dynamic testing is two different approaches to testing available for developers and testers in the software development process. In order to get the most out of these tests, this has to be chosen carefully and it is important to understand the benefits and the limitations of each one.

Static testing is a test method where code are not being executed and it can be done manually or using a set of tools. This type of testing would check the syntax, required documentation and design of the code. Static testing also includes security testing to analyze the software for potential errors, code flaws, or vulnerabilities. This method can be start in the early development stage of the program, and it can be done on work documents like specification documents, design documents, web page contents, etc. Static testing techniques include:
-  Inspection: The main purpose of this is to find defections. This task can be reviewing the check lists, work documents, or code walkthroughs and it is conducted by moderators.
- Walkthroughs: This technique would require the author to conduct a meeting to explain the product. Participant can ask questions and a scribe is assign to make notes.
- Technical review: This technique is to check if the written code is matched with technical specifications and standards. Test plans and strategy is reviewed here.
- Informal review: Documents in this technique should be reviewed informally and comments should be added.

Dynamic testing is done when code is in execution in a runtime environment. When code is running, the predefined input should get the expected result for the test to return positive. With this, developers can observe features of the program and monitoring the effect of this program on the running hardware. There are two types of Dynamic testing: functional and non-functional testing. Dynamic testing techniques include:
- Unit testing: testing individual modules by developers.
- Integration testing: testing the performance when different modules run with each other.
- System testing: testing the system as a whole.
- Acceptance testing: testing from user's perspective end.

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