"A bug found in the application" is a terrible phrase for the developer but it's seen far toooften. Errors during development are to be expected and it is important to detect and correct them in a timely manner. Let's take a look at what bugs are, what mistakes one can make and what to do about it.
Bug is a slang word. Literally it describes an order of insects and means an error in the program. However it does not have to be a mistake, only an unexpected result of your work. This is a normal phenomenon that occurs in the development of any complex product. It is impossible to take into account all factors at once. The question is how many bugs will be detected and how application or site bugs will be fixed by developers.
As a rule, the problem is detected during appdebugging or beta testing. Sometimes the bug manifests itself even after the product has launched. In this case, updates will be prepared.
There are quite a lot of ways errors manifest, among them:
Bugs are a normal and inevitable phenomenon of any complex software. The common user got acquainted with this mainly through video games and office programs. Even corporations like Microsoft or Google, which employ thousands of QA specialists, cannot fully guarantee their absence in their products.
There are several types of errors in programming. They can no longer be called bugs, because some of these errors can lead to serious consequences. They can also lead to additional bugs. Here are the main problems:
There are other types of errors, these are only the most common. If they occur, the programmer should find the problem and fix it. Otherwise, the program may simply stop working.
We have now determined what bugs are. It's not just a mistake, it's a mismatch in the expectation of behavior and reality. A bug in the program can sometimes be humorous(in a video game, for example). ,Not for the application owner, of course, and not when the error harms the business. Sometimes it can lead to real tragedy.
In the eighties of the last century, a tragedy occurred with the programmable radiotherapy device Therac-25. At least 2 deaths have been documented due to the fact that patients received overdoses of radiation from the device. The reason for this was a fatal bug in the software.
So, there are spheres and software in which bugs are unacceptable. If there is an error in the application, what should I do? Suspend any potentially risky operations and contact developers - only after careful code analysis and regression testing can you start to think about troubleshooting.
Bugs appearing in software depend on many factors. In some cases, they may not appear at all, in others they may occur at every step. Bug prevalemce depends on:
In general, a bug is a constant companion of any development so that they are not encounteredat every user action. That's why we provide technical support for our products to eliminate minor problems.
There are a large number of categoriesof programming, and each direction has its own types of errors. Some of them are critical, others lead to minor bugs. Here are the main types of errors:
These are the main types of problems that may arise during development. Some of them create application bugs, others lead to adverse repercussions and incapacity. They are eliminated by testing.
To solve this problem, it is necessary to conduct testing. There are several types of tests. Even a very experienced programmer is not able to notice all the mistakes, and therefore, additional tools are used.
One tool is a debugger. It allows you to automatically monitor the performance of the program and immediately warns about encountered problems. Another solution is unit tests. The specialist describes the situations for each component and indicates the expected outcome. Then the test starts, and if the result does not match what is expected, a warning appears. Next, programmers will identify and fix the problem.
During alpha testing, the development team simulates user activities and tries to find problematic areas. During the beta testing, the program is provided to users for real use. All these tests help to launch the product, minimizing the risk of errors.
However,ven that isn’t always enough. The appearance of errors during the use of a launched program is normal. Therefore, do not worry, smart developers will fix the problem quickly. The Wezom team provides warranty service for all products that it develops, as well as providing individual post-release support.