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This article mainly explains "what are the seven principles that software test engineers must understand". The explanation in this article is simple and clear and easy to learn and understand. let's study and learn "what are the seven principles that software test engineers must understand"?

Principle 1: test the product as soon as possible

Software testing is nothing more than ensuring product quality and reducing the cost of product research and development. in general, large companies, testers begin to intervene in the product demand stage. At this stage, the main test object is the requirements, if you can find out the requirements and design aspects of the bug in the requirements phase, you can reduce the repair costs in a series of later processes.

Principle 2: there is no perfect test

In the process of the rapid development of science and technology and the changing needs of users, the scale of software testing is becoming larger and larger, the testing difficulty is also increasing, and it becomes more complex, so it is almost impossible to achieve complete testing. Software testers should decide to carry out centralized testing and high-intensity testing according to risk and priority as far as possible, so as to ensure software quality.

Principle 3: Bug cannot be completely avoided

Testing is actually looking for bug in different usage scenarios in the product, but the testing process is generally aimed at a specific time before launch and some simulated usage scenarios. Software testers can only reduce the possibility and probability of bug in the software, but can not fully grasp the Bug that appears. There may be different situations during long-term use, or during user use.

Principle 4: defect clustering (principle 2 to 8)

Have you ever heard that whether a person is successful or not depends on what he does in 20% of his spare time. Software testing is also in line with the 28 principle: first, functionally, if 20% of a software is the main function, it will take 80% of the time of software testers; secondly, from the bug analysis, the more bug found by a functional module, the more undiscovered bug there is, so the discovered bug is proportional to the undiscovered bug.

Principle 5: repeat loopholes

I don't know if you don't feel that way. Check the article. It is very easy to check out a lot of errors at the beginning, but there will be no errors if you check it over and over again. Similarly, software testing is the process of checking articles, and slowly you will find that you can no longer check out bug, but we all know that there will be no perfect software. At this time, the tester has already entered repeated vulnerabilities, visual and theoretical implementation, which will make him ignore some bug that is not obvious. There are several ways to solve this problem:

1. Cross test. The testers of different functional items exchange tests with each other. This is the more usual way.

2. Interval test. The interval test is used in the combination of practical test and theoretical analysis.

3. Test cases are updated frequently. Modify the test case according to the characteristics of the software during the testing process.

4. Try a new test method. Try not to use a single testing method to test the software, and adopt different testing methods and methods according to the content of the software.

Principle 6: there is no stereotyped test

With different industries and different businesses, the development of testing activities is also different: the choice of tools and the testing process will be different. Therefore, the learning test knowledge is only to provide the corresponding methods, and then in the specific testing work, we should choose a more suitable testing method according to the content of the test content.

Principle 7: don't expect to be without bug

For software testers, it is an extravagant hope to encounter a product without any bug. Just-in-time products, design, and development have been around for more than ten years, and different bug will be produced in requirements integration, work docking, and final function realization. Of course, assuming that products can be produced without any bug, then the test post may not have the value of existence.

Thank you for your reading. the above is the content of "what are the seven principles that software test engineers must understand". After the study of this article, I believe you have a deeper understanding of what the seven principles that software test engineers must understand, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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