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Difference between Manual testing and Automation testing

What are the differences between Manual testing and Automation testing ?

  • Executing the test cases manually without any tool support is known as manual testing.
  • Taking tool support and executing the test cases by using automation tool is known as automation testing.
  • Following table shows the difference between manual testing and automation testing.

Manual Testing
Automation Testing
1. Time consuming and tedious: Since test cases are executed by human resources so it is very slow and tedious. 1. Fast Automation runs test cases significantly faster than human resources.

2. Huge investment in human resources: As test cases need to be executed manually so more testers are required in manual testing. 2. Less investment in human resources:Test cases are executed by using automation tool so less tester are required in automation testing.
3. Less reliable: Manual testing is less reliable as tests may not be performed with precision each time because of human errors. 3. More reliable: Automation tests perform precisely same operation each time they are run.

4. Non-programmable: No programming can be done to write sophisticated tests which fetch hidden information 4. Programmable: Testers can program sophisticated tests to bring out hidden information.


  1. Selenium
    Selenium is an open source software-testing framework for Web application. It supports different populat languages like Java, Perl, PHP, C# to write domain specific scripts.
    And also Selenium providing record and playback supports to test application without learn scripting language. Selenium composes four components such as (Selenium IDE, Selenium RC, WebDriver, Selenium) a single suite for different testing purposes.
    The advantage of Selenium compare to other automation tools are it is open source, execute scripts across different browser and parallel execution
    As it is open source many of the organization are preparing this tool for automation testing.

    The scope of this tool very huge, so students, job seeker can consider this tool for thier carrier.

    For further details
    Selenium Testing training in Chennai

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