Manual Testing Vs Automation Testing

Manual Testing Vs Automation Testing: Which Can be the Most Effective for Your Career?

June 19, 2023

In the realm of software testing, the age-old debate between manual testing and automation testing continues to captivate professionals. Both approaches have their own unique merits and limitations, making it crucial for organizations to understand which method best suits their needs.

This article will delve into the discussion of manual testing vs automation testing, exploring their strengths, weaknesses, and ultimately uncovering the optimal testing strategy for different scenarios.

What Is Manual Testing?

What Is Manual Testing?

Manual testing refers to the process of executing test cases manually without the use of any automated tools. It involves human intervention to verify software functionalities, identify bugs, and ensure system reliability.

Testers meticulously follow predefined test cases, simulating real user interactions and validating the software against expected outcomes. Manual testing offers flexibility, adaptability, and the ability to catch nuanced issues that automation may miss.

How Does Manual Testing Work?

Manual testing relies on human testers. These human testers meticulously execute test cases, record observations, and analyze the software’s behavior. They interact with the application, input data, and validate outputs manually.

Testers perform exploratory testing, where they navigate through the software organically to identify defects and assess user experience. Manual testing requires critical thinking, domain knowledge, and human judgment to evaluate software performance effectively.

What Is Automation Testing?

What Is Automation Testing?

Automation testing involves using specialized tools and scripts to execute test cases, validate software functionalities, and compare actual outcomes with expected results. Testers develop scripts that automate repetitive and time-consuming tasks, allowing for efficient testing.

Automation offers speed, repeatability, and the ability to execute a large number of test cases quickly. It is particularly useful for regression testing and performance testing.

How Does Automation Testing Work?

Automation testing employs software tools that execute pre-recorded scripts or written code to perform tests. These tools interact with the application’s user interface, APIs, or backend systems. This process helps validate functionality, data integrity, and performance.

Testers create test scripts using programming languages or specialized test automation frameworks. Automation testing reduces human error, enables comprehensive test coverage, and provides faster feedback on software quality.

What Is The Difference Between Manual Testing and Automation Testing?

What Is The Difference between Manual Testing and Automation Testing?

The primary difference between automation testing and manual testing lies in the level of human intervention and the use of tools. Manual testing relies on human testers who execute test cases manually, while automation testing utilizes specialized software tools and scripts for test execution.

Let’s have a look at manual testing and automation testing difference as discussed below:

PointsManual TestingAutomaton Testing
AccuracyDependent on human testers’ attention and precisionPrecise and consistent execution based on predefined scripts
Cost-effectivenessHigher cost due to extensive human resources and timeCost-effective in the long run, especially for repetitive tests
SkillsRequires domain knowledge and manual testing expertiseProgramming and scripting skills are required
User ExperienceOffers subjective assessment and real user interactionsLacks the human touch, primarily focuses on functional aspects
ReliabilityProne to human errors and subjective interpretationsReliable and objective, reduces chances of human mistakes
FrameworkNo specific framework required, flexible test case creationRequires framework setup and maintenance for test automation
Time-savingTime-consuming for executing repetitive test casesSaves time with quick execution of multiple test cases
ReusabilityLimited reusability, as tests need to be repeated manuallyHigh reusability, as automated scripts can be used repeatedly
Performance TestingManual execution may miss nuanced performance issuesEfficient for conducting performance testing and load testing
Batch TestingManual execution is challenging for batch testingSuitable for executing batch tests with consistency
Regression TestingProne to oversight in repeated regression testsIdeal for executing repetitive regression tests
SpecializationHuman testers can specialize in specific test scenariosRequires specialization in test automation and scripting
When to UseComplex scenarios, exploratory testing, UX evaluationRepetitive tests, regression testing, performance evaluation
Note: The table above provides a concise overview of the major differences between manual testing and automated testing in various aspects. It should be noted that the choice between manual and automated testing depends on project requirements, resources, and the nature of the software being tested.

Advantages and Limitations of Manual Testing

Advantages and Limitations of Manual Testing

Below listed are some of the advantages and limitations of Manual Testing.


Advantages of Manual Testing:

1) Flexibility to adapt to changing requirements and perform exploratory testing.

2 ) Human intuition and creativity to identify complex and subtle issues.

3) Effective for user experience evaluation and usability testing.

4) Cost-effective for small-scale projects with limited resources.

5) Ability to simulate real-world user interactions accurately.


Limitations of Manual Testing:

1) Time-consuming and less efficient for executing repetitive test cases.

2) Prone to human errors and subjective interpretations.

3) Limited scalability for large and complex projects.

4) Difficult to perform load and performance testing.

5) Challenges in maintaining test case consistency and repeatability.

Advantages and Limitations of Automation Testing

Advantages and Limitations of Automation Testing

Below listed are some of the advantages and limitations of Automation Testing.


Advantages of Automation Testing:

1) Faster test execution and higher efficiency for large-scale test suites.

2) Improved accuracy and reduced chances of human errors.

3) Reusability of automated scripts for regression testing.

4) Increased test coverage and ability to perform load and performance testing.

5) Time and cost savings in the long run for repetitive tests.


Limitations of Automation Testing:

1) High initial setup and maintenance costs for test automation infrastructure.

2) Inability to assess subjective factors like user experience and usability.

3) Limited effectiveness in testing complex scenarios requiring human intuition.

4) Dependency on programming and scripting skills for test development.

5) Challenges in adapting to rapidly changing requirements and user interface changes.

Reasons for Using Automation Testing over Manual Testing

There are a few reasons for which many often choose automation testing over manual testing.

Here are the reasons:

1. Automation testing allows for faster test execution, enabling testing of large and complex applications within shorter timeframes.

2. Automated tests can cover a wide range of scenarios and perform repetitive tasks with precision, ensuring comprehensive test coverage.

3. Automation simplifies the execution of regression tests, allowing for quick identification of software defects and ensuring stability after changes.

4. The initial setup and maintenance costs can be high in automation testing. However it  proves cost-effective in the long run, especially for projects requiring frequent testing cycles.

5. Automated tests produce consistent and objective results, minimizing human errors and providing reliable feedback on software quality.

Reasons for Using Manual Testing over Automation Testing

There are still a few people who prefer manual testing rather than automation testing.

Here’s why:

1. Manual testing excels at exploring new software functionalities, identifying unexpected issues, and providing valuable insights based on human intuition and creativity.

2. Manual testers can evaluate the user experience, assess subjective factors, and provide qualitative feedback on the software’s usability.

3. Manual testing offers flexibility in quickly adapting to changing requirements and software updates, making it suitable for projects with dynamic environments.

4. Manual testing is better equipped to handle complex scenarios that require human judgment, adaptability, and thinking outside the box.

5. For smaller projects with limited resources, manual testing can be a more cost-effective approach, as it requires minimal setup and maintenance.

Manual Testing vs Automation Testing Interview Questions & Answers

Manual testing vs Automation Testing Interview Questions & Answers

Here are some of the most commonly asked questions in interviews of Manual and Automation Testing.

Manual Testing Interview Questions & Answers

Before the launch of any product or software, its Testing is very important. Manual Testing involves Manual Testing interview questions and answers. Here are a few common Manual Testing interview questions and answers:

1. What do you mean by software testing?

It’s a validation process that confirms a system or software is working as per the requirement without any bugs or errors.

2. When is the best time to stop testing?

After completing the following milestones, the Testing activity ends.

– Test case execution

– Testing deadline

– Code Coverage Ratio

– Meantime Between failure rate

3. What is static testing? When it starts and what it covers?

It is a white-box Testing technique where the developers are directed to verify the code using a checklist to find the errors. Static Testing can be started without actually finalizing the program or application. It is cost-effective compared to dynamic testing.

4. What did all a test plan include?

To ensure a quality product a test plan must store all possible Testing activities including

Test scope

– Testing the frame

– Environment

– Testing objectives

– Reason for testing

– Criteria for entrance and exit

– Deliverables

– Risk factors

– What are different types of software testing?

– Unit testing

– Regression testing

– Integration testing

– Smoke testing

– Functional testing

– Performance testing

– White-box and black-box testing

– Alpha and Beta testing

5. Can you name some types of Manual Testing?

Name of some manual testing are,

– Acceptance Testing

– Black Box Testing

– Integration Testing

– System Testing

– Unit Testing

– White Box Testing

6. Name the four levels of Manual Testing.

Four Levels of Manual Testing are:

1. Unit Testing

2. Integration Testing

3. System Testing

4. User Acceptance Testing

7. Can you explain Test bed in Manual Testing?

The test bed is a setting designed for testing. It is a setting used for testing an application. It consists of:

– hardware,

– software,

– network configuration,

– an application under test, and

– other related software

Automation Testing Interview Questions & Answers

Below are the frequently asked questions and answers that asked in the automation testing interview.

1. What is Automation Testing?

Automation Testing is that the process of Testing software or application. It is done by using an Automation Testing tool to find the defects or errors. Executing the test scripts and generation of results are performed automatically by Automation tools.

2. What is the requirement of Automation Testing?

It is required to save time & money, increase the test coverage, run tests anywhere & anytime, generate robust reports, and test non-functional aspects of an application.

3. Is 100 percent Automation possible?

It is impossible to automate everything 100 percent. It is difficult because there are some cases where a registration page has a captcha or some test cases which we don’t execute often.

4. How can you handle CAPTCHA in your test Automation project?

To consult your development team to provide a workaround you have to automate an application that uses CAPTCHA. By making CAPTCHA static in your test environment you can automate CAPTCHA by providing one specific value as a CAPTCHA on every run.

5. Name the steps taken in Automation Process.

The steps involved are,

– Test Tool Selection

– Defining the possibility of automation

– Planning

– Design and Development

– Test implementation

– Maintenance

6. Name the popular test tools for Automation Testing

The popular test tools for Automation Testing are


– Rational Robot

– Selenium

7. Is Automation Testing is a way to eliminate Manual Testing?

No, the foremost aim of Automation Testing is to lessen the number of test cases to be run manually and not eliminate Manual Testing completely.

Manual Testing vs Automation Testing: Which One Is The Best Choice For Career

Manual Testing vs Automation Testing: Which One Is The Best Choice For Career

Deciding between a career in manual testing or automation testing depends on various factors. Automation testing offers strong career prospects due to the increasing demand for test automation expertise.

However, manual testing still holds value for positions that require exploratory testing, usability evaluation, and adaptability to changing requirements.

Ultimately, the best choice for a career depends on an individual’s interests, skills, and the specific demands of the industry.

Career Opportunities in Manual Testing

Career opportunities in Manual Testing took time to convince people that it could also be a career option.

Software development was considered a comparatively attractive option than testing. To become a manual tester you need to have:

– Enough knowledge of SDLC, STLC, and methodologies.

– Knowledge of test case preparation, defects review, and management.

– Knowledge of programming languages like JAVA or NET.

– Well-versed with writing and executing SQLs.

– Some experience with web and mobile applications.

Career Opportunities in Automation Testing

There are no strict eligibility criteria or any hard and fast academic requirement to pursue Automation Testing courses. Although there are different approaches towards Automation Testing courses:

– Proficiency in programming languages

– Lear SQL queries and databases

– Understanding Automation Testing concepts

– Getting familiar with Automation Testing tools

– Try to get hands-on experience in manual testingSome of the most popular certified Automation Testing courses are ISTQB Test Automation Engineering Certification, ICAgile Certified Professional in Agile Test Automation (ICP-ATA), Certified Software Testing Engineer (CSTE), etc.

LogicRays Academy can help you excel in software testing with comprehensive courses in Manual Testing and Automation Testing. Gain hands-on experience, learn industry best practices, and acquire the skills necessary to succeed in your testing career.

Enroll now and take the next step towards becoming a proficient manual tester or test automation expert and get your dream job.

FAQs About Manual Testing vs Automation Testing

Are there enough job opportunities for Automation testers?

Yes, there are abundant job opportunities for automation testers. Organizations strive to enhance efficiency, speed, and quality in software development. Therefore, the demand for test automation expertise is growing rapidly.

Which field offers better career growth: Manual Testing or Automation Testing

Automation Testing generally offers better career growth prospects compared to Manual Testing. With the increasing demand for test automation in the industry, professionals with automation skills are in high demand. Automation Testing allows for scalability, efficiency, and faster test execution, making it a favorable choice for career growth opportunities.

Can I start as a Manual tester and transition into Automation testing later?

Yes, starting as a manual tester and transitioning into automation testing later is a common career path. Manual testing experience provides a solid foundation and understanding of testing principles. By gaining additional skills and knowledge in automation tools and frameworks, one can make a successful transition into automation testing.

Which certifications are recommended for Manual and Automation Testing career?

For a Manual Testing career, certifications like ISTQB Foundation Level and Agile Testing certifications are highly recommended. For an Automation Testing career, certifications such as Selenium WebDriver, ISTQB Agile Tester Extension, and Certified Test Automation Engineer (CTAE) can be beneficial in demonstrating proficiency in automation tools and frameworks.

Can Automation Testing Replace Manual Testing?

While automation testing offers many advantages, it cannot completely replace manual testing. Manual testing provides human judgment, intuition, and the ability to evaluate subjective aspects like usability. Both approaches have their advantages and limitations. So, a balanced combination of manual and automation testing is often the most effective approach.