Introducing Various Types of Software Bugs. types of software bugsEach product contains various types of software bugs. A software bug is such a system behavior to the point that does not meet the necessities and produces the incorrect outcomes. It is difficult to build up a bug-free system.

A bad dream of any QA build is a bug in software testing which comes back from production.

You buckle down, you attempt to check each possible flow, you test it for 8+ hours for every day, and after the launch, the client inside seven days reports a vital software defect. How is it possible? Why it happens and how to fix it?

As characterized in Wikipedia “An error is a deviation from precision or accuracy” and “A product bug is an issue, flaw, fault or software failure in a PC program or system that makes it deliver an inaccurate or unpredicted outcome, or to carry on in unintended ways “.



Following are the most well-known types of software bugs that guide you in software testing. This encourages you to recognize the defect in software testing efficiently and builds the proficiency and productivity of testing.

This point most likely helps in discovering more types of bugs in software testing more effectively. Moreover, you can utilize this as a checklist while writing test cases and keeping in mind that performing testing.

Missing Command Errors

Missing Command Errors happen when a command that is normal can’t be found on the product. For instance, if a specific program does not accompany a nearby button, this would constitute a missing command error and would make it troublesome for clients to close the program down.

Syntactic Errors

These are syntactic errors that end up evident during the testing of the product. Here, reference isn’t made to syntactic errors that happen in code, which are all generally recognized by the compiler. A case of a syntactic error would be if a software engineer has incorrectly spelled “Open” on a command button, for example, “Opn.”

Functionality Errors

Each bit of software has its own specific execution details, that is, how it is expected to carry on when it is being utilized. A functionality error happens when a bit of software fails to carry on with how it was proposed to. For instance, if the limit button on a bit of software rather shuts the program, you would recognize this as a functionality error.

Computation Errors

Computation errors are caused by awful logic, incorrect formula, coding errors, data type mismatch, function call issues, and much more issues.

Control Flow Errors

Software programs have what are called control flows, which guide them under what conditions. Where the program has not been instructed under a few conditions, control flow errors will undoubtedly happen.

Communication Errors

Communication errors happen when there is a breakdown in communication between the product and the end client, which causes issues in the utilization of the software product. In the case that the software product accompanies undocumented features, at that point communication error in software testing will undoubtedly occur during its use.

Error Handling Errors

Errors can happen while clients are utilizing software, and these should be dealt with accurately. Inability to do this prompts error handling errors. It is critical to incorporate into error messages the means that clients need to take keeping in mind the end goal to determine the issues.

The above-mentioned types of software bugs can be distinguished in various kinds of software testing, for instance, integration checking, system, functional, and so forth. Other than that, there are a few unusual types of defects in software testing that may cause a few challenges during their finding and settling.

What Are the Unusual Software Bugs?

Bohrbug shows up under an arrangement of special conditions. In some cases, it is called ‘ghost’.

Mandelbug - The type of software failure of disorganized nature. It is exceptionally hard to characterize the genuine explanations behind this bug. It has extremely complex causes.

Heisenbug - The errors of such a sort can adjust their properties. It is somewhat hard to distinguish these issues as they will never be found in the debug-mode version of the software

Schroedinbug shows up on account of unordinary utilizing of the product.

Phase of the Moon bug - Rather uncommon error yet it causes numerous inconveniences. It can show up due to the system is vulnerable against some failures during the particular timeframe and under specific conditions.

Statistical bug - The issue normal refers for aggregates. It disregards the irregular delivering of the specific output.

These bugs are somewhat serious and the development team should buckle down keeping in mind the end goal to evacuate the issues. Furthermore, testers should likewise apply diverse strategies and procedures to distinguish the dominant part of actual production defects in software testing. For instance, they utilize the white box testing procedure to better understand the system logic.

Defect management in software testing, bug tracking software utilization, bug reporting software process all are eventually the part of Quality Control activities.

Fixing a bug is the least expensive during the necessity investigation arrange, gets dynamically costly with each stage and is most costly in the post-release maintenance phase.

As QA engineers, we could possibly be directly engaged with the requirement definition. We also may have almost no immediate control of the quality of the prerequisites.

Thusly, it is basic that we can recognize, look for and report any errors that we come across during testing phase.