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Why Automation Testing is Better Than Manual Testing?

August 17, 2023
Why Automation Testing is Better Than Manual Testing?

In the digital era, software applications are everywhere, enhancing various aspects of our lives. Ensuring these applications function correctly and provide a seamless user experience is of utmost importance. This is where the role of testing comes into play in the software development process. Traditional manual testing, where a tester would manually perform checks on software functionalities, has now given way to automation testing. This article delves into the reasons why automation testing is considered superior to manual testing. It uses simple language and real-world examples for better comprehension.

What is Automation Testing?

Automation testing is a modern approach to software testing that leverages specialized tools and software to conduct a test case suite. Unlike traditional manual testing, where a human tester checks the functionality of the software or application, automation testing involves using automated tools to execute test scripts and verify the results.

This method of testing is primarily used to re-run the test scenarios that were performed manually, quickly, and repeatedly. It’s a powerful way to ensure the consistent performance of functionalities even after minor changes in the code.

In essence, automation testing is akin to an efficient assistant that performs repetitive tasks with speed and accuracy. It involves pre-scripting test scripts that are then run by software tools. These tools follow the set of instructions or scripts to execute the tests and then compare the actual results against the expected outcomes.

The beauty of automation testing lies in its ability to execute repetitive tasks without human intervention, freeing up valuable time for manual testers to focus on more complex tasks. It significantly increases test coverage and accuracy, as it can execute complex scenarios that could be time-consuming and error-prone if done manually.

For instance, consider an e-commerce platform that introduces new features or updates regularly. By using automation testing, the platform can ensure that existing functionalities are not broken with each new update. The test scripts can be rerun for each update, delivering quick and reliable results.

Automation testing also plays a vital role in Continuous Integration and DevOps practices where rapid feedback on the system’s health is crucial. It allows developers to detect and correct issues early in the development process, enhancing software quality and reducing time to market.

To summarize, automation testing is a key player in today’s fast-paced software development environment. It guarantees efficiency, reliability, and superior quality control in software products by automating repetitive tasks, improving accuracy, and saving time. This makes it an invaluable asset in any software development process.

Why is Automation Testing better than Manual Testing?

Rapid Execution

An undeniable advantage of automation testing is its speed. Automated tests can run much faster than the manual tests, reducing the time required for comprehensive testing.

Real-life example: Consider an e-commerce website that houses thousands of products across various categories. For a manual tester, checking each product’s details would be a long-drawn process, taking several weeks or even months. However, automation testing can perform these checks within a significantly shorter timeframe, ensuring quicker product validation.

Accuracy and Uniformity

Automated tests follow the exact steps they are programmed to during each execution, ensuring precision and uniformity in testing, thereby eliminating the possibility of human errors.

Real-life example: Let’s assume you’re testing a finance application that deals with numerous monetary transactions and calculations. With manual testing, there’s always a risk of miscalculations or data input errors. Conversely, automation testing will provide accurate results consistently.

Reusability of Test Scripts

In automation testing, test scripts are reusable. They can be used multiple times across different versions of the software product, thus saving significant time and effort.

Real-life example: Let’s say you have a mobile application that frequently undergoes updates or feature additions. Instead of creating new test cases for each update, you can modify and reuse existing automated test scripts. This not only saves time but also ensures that previously tested elements remain bug-free.

Cost Reduction

Automated tests can be executed repeatedly at no extra cost. Moreover, it reduces the need for an extensive manual testing team, leading to lower human resource costs.

Real-life example: Suppose you have developed an online game that regularly introduces new levels or features. Rather than constantly expanding your manual testing team for each update, automated tests could handle most of these tasks, significantly reducing the overall cost.

Extensive Test Coverage

Automation testing can perform a multitude of complex test cases during each test run, providing coverage that would be unfeasible with manual tests.

Real-life example: An online learning platform with a broad range of modules, user roles, and interactive elements could prove challenging for manual testing due to its vastness and complexity. However, automation testing ensures comprehensive testing of every module, leading to thorough coverage.

Frequent Execution

Automation testing allows tests to be run as often as needed. This is particularly useful in cases where the code is regularly updated.

Real-life example: Take a popular social media application that experiences frequent updates and feature additions. Running manual tests each time there are changes would be a monumental task. Here, automation testing shines as it allows for frequent testing without any additional effort.

Time and Effort Conservation

Performing repetitive tests manually can be monotonous and time-intensive. Automation testing saves considerable time and effort by executing these repetitive tasks efficiently and accurately.

Real-life example: Consider a case where you’re testing a Customer Relationship Management (CRM) software for multiple users with varied roles and permissions. Conducting these tests manually would be laborious and time-consuming. In contrast, automation testing can efficiently perform these tasks, conserving considerable time and effort.

The Takeaway

While manual testing still holds its ground in certain areas like exploratory testing and usability testing, automation testing takes the lead in numerous scenarios due to its speed, accuracy, reusability of test scripts, cost-effectiveness, extensive test coverage, and conserving time and effort.

From e-commerce websites and finance applications to mobile apps and social media platforms, automation testing has demonstrated its value across diverse sectors of the software industry. As we march forward in the digital age, the divide between manual and automation testing is anticipated to widen further, making automation testing an increasingly critical tool in the software development lifecycle.