Manual and automation testing each have their own advantages and disadvantages. Automation testing using Selenium is commonly preferred because it can test multiple browsers, improve quality by reducing missed test cases, is free to use so maintenance is easy, saves time by allowing tests to be rerun quickly, works with any programming language, and allows tests to run in parallel. Selenium is a good choice for projects where compatibility, quality, maintenance costs, time limitations, or scalability are concerns.

2. 
Selection of a tool for your project that will satisfy all the
technical and business agenda is a very hard task. Solely
depending on marketing information is not a solution. You
need to have comprehensive research and experience to
select the most appropriate one for a project.
Introduction

3. 
• Everything has its own merits and demerits. Considering testing,
manual and automation testing also have their own advantages and
disadvantages. It depends on you which approach you are going to
choose. So, before selecting any type, it is important to know the
differences between both.
• If you have less time then you should go for manual testing as it
will not allow any tester to automate test cases in very short span of
time. Automation Testing will increase the effectiveness and
efficiency of your project. There are many tools available in market
through which you can automate your project.
Confused between Manual and
Automation Testing?

4. 
As we have already discussed that there are many tools available
in market for automation. The tool that is most commonly used
is Selenium. As it has its own merits, it is highly preferred over
the others. It has a variety of features that can be implemented
for Compatibility Testing and Functionality Testing as it can
support majority of the browsers available.
Why choose Selenium?

5. 
1. Thinking about the compatibility with multiple browsers?
Then answer to your question is YES! Selenium is compatible
with multiple browsers like Chrome, Mozilla, Opera, Microsoft
Edge, Safari and many more. So you need not worry on which
browser your software is running, it will be bug free!
Having some thoughts?

6. 2. Does the quality matters?
Doing the monotonous job, there are chances that a manual
tester can skip some points while regression testing. Even if the
tester is doing his best, he might miss something while testing.
Performing the same using Selenium will not only save your
time but also there will be no chance of missing any test case.
There will be full test coverage in case of automation testing.
Testers will be from manual testing and will have more time to
automate new test cases to get even better output.
3. Is maintenance cost bothering you?
Selenium again wins the race! As it is an open-source and free
software, it is easy to have the maintenance of your software.
Why to opt a licensed tool when you are getting better features
using free software?

7. 4. Having time limitations?
In case of agile methodology there is a repetition of the test cases
for some modules. Even if a small change is made in the code, all
the test cases are to be executed. If you are opting for manual
testing then it will take a lot of time to re-execute all the test
cases. But, if you have opted for Selenium (Automation testing)
same test cases can be executed n number of times and it will be
much faster as compared to testing it manually. Once the
automation is done, it takes a few hours to test the software
which will be a full day to test the same software manually.

8. 5. Independent of the programming language!
You read it right! You can choose any language for your project.
Selenium supports multiple languages and hence provides you
greater scope to choose it amongst the others.
6. Scalability
Selenium allows you to run many test cases in parallel through a
component selenium grid. You just need the browser for
running the test scripts.

9. 
Automation testing has an important role in testing as it
delivers better quality product in lesser time. And to adding
more to it is Selenium having its own merits over the other
automation tools there in the market. Go for it and do not
regret!!
Conclusion

10. 
THANKS