9 Types of Software Errors That Every Tester Should Know

9 Types of Software Errors That Every Tester Should Know
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If you are a novice tester, then it’s obvious that in the early stage of your career you might not know the basic errors of testing.
Being a tester, you should aim to fix the issues and bugs during the early stages. This can reduce the overall cost of development and ensure high-quality solutions.

The testing team should understand possible software errors along with the requisite skill sets and tools.

So, as a top software development company in Toronto, we have listed the top software errors that every tester should check while testing the software.

Functionality Errors

The functionality test aims to ensure that every software element should function in sync with the goals. For instance, if you have a button that opens another page, the test will check if that happens.

If the button doesn’t complete the action on click, it is an error in the testing language. The development team needs to check this action and rectify the error.

This is one of the most common errors, as it checks for every element and goal on the interface.

Unit Level Errors

This is the most basic level bug that is part of the functionality. Unit includes classes and methods within the code that can impact the functional level of the application. If the classes defined or the methods are incapable of completing the function-level goals, it can reduce the quality of the application.

Knowing these errors can help you improve the software quality.

Error Handling Errors

When interacting with the user, you should communicate clearly and precisely. This is especially true for errors. When the interaction ends in an error, you should ensure the user understands the nature of the error and what they need to do next.

However, in some instances, the software cannot communicate the errors properly, which results in bugs. As a result, the testing team should check for errors when assessing the error-handling methods within the solution.

Performance Bugs

These are important errors and should be handled before the launch of the software solution. It can hamper the memory usage and bandwidth consumed by the software.

The speed of the software, the memory usage, and other factors can impact the performance. There are no direct metrics for performance errors; however, checking them while assessing the software application’s quality is essential.

Security Errors

The software application you launch into the market should be highly secure and well-authenticated. This will protect the data and information and ensure zero associated risks.

When your testing team works on assessing the software, checking the security layers and testing the quality are essential. They should ensure that all modes of transmitting information are locked. This is a high-priority error that the team should fix at the earliest.

Compatibility Errors

There is a possibility that the software you are building doesn’t work with specific hardware. It is also possible that the software doesn’t work with other solutions in your organization.

For example, if you own legacy software, and your new software application doesn’t fit with the legacy systems, it is a compatibility error.

It can cause data loss and regular crashes within the systems. It may not offer the same experience across specific browsers, hardware or software. That’s why you need to test the software for all systems and browsers to access the target market.

If there is a compatibility error, you might need to fix it or find a solution to resolve the challenge.

Logical Errors

Bugs owing to the logical inaccuracies within the software application can produce the wrong outcomes. It could cause unexpected behaviour in the software. It can also cause wrong movements for the user, which is not something they need.

Logical errors aren’t hard to find; however, the team needs to work on the programming aspects to resolve them. They will need to make complex changes within the code.

These errors occur, especially when dealing with complex calculations or difficult decisions. As the software advances, the chances of logical errors increases.

To identify logical errors, the testing team should use appropriate tools. It is not easy to assess using essential tools or compilers.

Usability Errors

This could hamper the overall experience offered by the software solution. Usability errors are triggered when the user finds connecting with the software application difficult.

For example, if the registration process is lengthy and complex, it is a usability error. The team needs to identify all these issues, from the user’s perspective, before resolving them.

Spelling/Grammar Errors

When the development team types a particular element in the interface or backend, it could be misspelled or contain grammatical errors. Most testing teams tend to overlook it. However, end users may not overlook it when they use it.

It can lower your reputation, which can hamper you in many ways. As a result, you should check for syntactic errors while conducting the tests. The compiler will offer a few syntax errors that you can change. If you conduct a complete quality assessment, you will notice these syntax issues that can improve the overall appeal of your software.


Testing is critical to launching a high-quality application to the market. It can help you resolve complexities, address usability issues and make things simple for the end users.

To ensure a high-performing and quality software application, you should partner with a robust and experienced testing company. They can offer all types of software testing and provide the best outcomes that help improve your credibility and reputation.

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