What is the difference between automation and manual testing ?

In manual testing (as the name suggests), test cases are executed manually (by a human) without any support from tools or scripts. But with automated testing, test cases are executed with the assistance of tools, scripts, and software. Manual testing is not accurate at all times due to human error, hence it is less reliable.Automated testing is more reliable, as it is performed by tools and/or scripts. Automated testing is executed by software tools, so it is significantly faster than a manual approach. read less

Manual Testing: It is the process of testing an application manually (without using any testing tools) to find as many defects as possible & correct it to make sure the application is bug-free & with good quality which is the main requirement of any client across the world! Automation Testing: It is the process of testing an application using an automation tool (there are lots of tools in the market like QTP, Selenium, RFT, Silk, TestComplete etc.). Automation testing is mainly carried out NOT to find the defects, but for REGRESSION TESTING i.e. to make sure after fixing of any defect that the other part of the application is working fine! read less

In manual testing no tool is available to test the application,you have to check the application manually by manually weither the application is working is working as per the client requirements or not. in automation testing tool is available to test the application weither the application is working is working as per the client requirements or not. read less

In Manual testing, software tester perform all activities by itself like if you want to test login page, you will enter username, password and click on signin and then manually verify we are login or not, In case of automation, tester create scripts for testing by using tool or technologies(Selenium, QTP) and then whenever testing is required, we run these scripts read less

First, meaning of automation needs to be understood. Automation means avoiding human intervention as much as possible. Do not tightly couple automation with testing. Automation can be applied anywhere, testing is just one area in that. For example, suppose say the testing you are doing is involving reading set of data. If you are feeding set of data through keyboard every time, then it becomes manual testing. If the data is stored in a file and your testing reads the data from the file, then it becomes automation testing. Automation testing involves usages of tools and languages. Typical languages used for automation are scripting languages such as shell scripting, tcl, python, perl and ruby. read less

Manual Testing Automation Testing 1. Manual Testing is a process which is done manually. 1. Automation Testing is a process which is done by the help of automated tools. 2. All the famous phases of STLC like test planning, test deployment, result analysis, test execution, bug tracking and reporting tools are obviously comes under the category of Manual Testing and done successfully by human efforts. 2. In Automation Testing all the popular phases of STLC are done by various open sources and purchased tools like Selenium, J meter, QTP, Load Runner, Win Runner and so on. 3. Manual Testing is a start of Testing, without this testing we can’t start Automation Testing. 3. Automation Testing is a continuous part of Manual Testing. 4. In Manual Testing testers are allowed to do Random Testing to find the Bugs. 4. In Automation Testing we always test through Running Scripts. 5. In Manual Testing we find more bugs than automation by Error Guessing. 5. In Automation Testing we test the repetitive functionalities of the application. 6. It takes lot of time. 6. It takes less time. 7. Manual Testing would be run sequentially. 7. Automation Testing is done on different machines at same time. 8. Regression Testing process is tough in Manual Testing 8. Regression Testing process is easy in Automation Testing by Tools. 9. It is not expensive. 9. It is expensive. 10. More testers are required in Manual Testing because in this testing test cases need to be executed manually. 10. Few testers are required in Automation Testing because in this testing test cases need to be executed by using Automation Tools. 11. It gives low accuracy result. 12. It gives high accuracy result. 12. It is considered as low quality. 12. It is considered as high quality. 13. In this Testing we cannot do batch testing. 13. In this Testing we can do multiple types of batch testing. 14. It is considered as less reliable. 14. It is considered as more reliable. 15. No need of programming in Manual Testing. 15. Need of programming is must in Automation Testing. 16. It is done without interaction of any Tool. 16. It is always done using tools. read less

Manual testing is a method used by software developers to run tests manually. The method takes automation tool support to execute the test cases is known as Automation Testing. Automated testing is good for large project.It is a method which uses automation tools to run tests that repeat predefined actions, matches the developed program’s probable and real results. If the project prospects and results align, your project is behaving as it should, and you are likely bug free. If the two don’t align, still, there is a problem that requires to be addressed. You’ll have to take a look at your code, alter it, and continue to run tests until the actual and expected outcomes align. read less