Manual Testing vs Automation testing
Everyone in test industry have
doubt, is manual testing dying? Will automation take over in future? Should we
use manual testing or automation to test product properly? Both have their own
advantages and disadvantages. Let’s discuss “Manual Testing vs Automation
testing”.
Manual Testing – In this testing,
test cases are executed by test engineers. They manually test product by
checking all possible test cases.
Automation Testing – In
Automation testing, All the test cases tested by automated scripts. So based on
given data, all test cases executed by computers one by one.
Main Difference between Manual Testing vs Automation
testing
Manual
Testing
|
Automation
testing
|
|
1.
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Not Reliable – Manual testing totally depends on
human. There are many chances that human will miss some test cases, some
permutation and combinations. There are many factors like human skills, moods, dead lines or laziness cause him/her to miss or not execute test cases correctly
|
Reliable – Automation test cases runs based on
scripts. Whatever test cases written in scripts or tool, they never miss.
|
2.
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Here the cost of test depends on cost of test
engineers.
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Here the cost of test depends on the cost of
automation tool.
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3.
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Time – Manual testing is time consuming. (they
take break for Coffee! lol)
|
Time – Automation tools are very fast. They
execute test cases one by one without stop.
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4.
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Humans don’t like to test same test cases
repetitively.
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Automation tool can run same test case as many
time as you want.
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5.
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Some API testing is difficult for human
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Automation tools can do API testing faster and
correctly.
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6.
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Performance testing – like sending 1000 mails
from your email app or opening 100 tabs in browser app and measure
performance is difficult and boring for humans
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Automation tools can do all these things faster
and correctly.
|
7.
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Test Engineers have their experience. So, from
their experience sometimes they identify some corner bugs.
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Automation testing done as per scripts written. They
test with same flow every time.
|
8.
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Humans can test from customer and end user
perspective. So, they can observe if some scenarios are not user friendly or
if some colour combinations looks ugly.
|
Machines don’t have such brain to identify colour
combination or test scenarios end user perspective
|
9.
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Reporting of test cases depends human to human.
|
Automation can do nice reporting with what all
steps they executed and what all steps fail at what method.
|
Summary
Manual testing and automation
testing both have their own advantages and disadvantages. Based on product and
features one need to decide how to test the product. Sometime combine effort is
better. For new features, UI verification, Ad-hoc testing, exploratory testing
Manual Testing is better. For Regression testing, Performance testing , Load
testing automation is better.
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