[Knowledge-Sharing Corner]

Recently, the information technology and software industries seem to be still at the top of the industries with great attraction, especially in the context of the crisis in all aspects of the economy and society caused by the Covid pandemic. out. So what is most impressive as soon as you mention this industry, is the image of computer engineers, smart programmers with complicated and confusing lines of code. Besides, participating in the quality assurance of software products, standing parallel to the programmers is the participation of testers in testing and testing, called software testing for short. member aka Tester.

In this article, let’s learn more about the work of a Tester.


As in the introduction, I have affirmed that the role of Tester is as important as that of a Programmer as well as software testing compared to software development. So let’s see how much Software Testing costs?


The job of software testing is to check, find defects of software, application or verify, verify whether the software has met technical and business requirements or not.

Software testing exhibits the following noble “responsibilities”:

First, cost-effective accountability. Software testing helps to quickly detect software errors, helping to reduce repair costs.

Second, responsibility for confidentiality. Products that are detected and fixed help eliminate risks and problems early, increasing product reliability. For the software industry, security is an extremely sensitive factor, it is directly related to the ownership and use of users. Therefore, software testing helps to perfect the software product, avoid unfortunate security holes, and increase user confidence.

Third, responsibility for product quality. In addition to the above security issues, the tested software product will ensure its reliability, high performance, and its necessary requirements and features. The product delivered to the customer must be a product that meets the requirements of the customer in terms of form, interface, structure, features, etc. and ensures that there are no errors on the product.

Fourth, responsibility with the trust of customers. A product that is more thorough, more complete, and of higher quality will create the best user experience, thereby creating more trust and credibility with customers and partners.

Thus, Software Testing is an integral activity in the software development process.


The people directly involved in performing all the work, shouldering the important “responsibility” above are not far from the Testers.

Therefore, a Tester is the person who knows the most about the knowledge, techniques and tools directly related to the software testing process. From there, they test and evaluate to give the most suitable specifications for the product.

Testers take full responsibility for defining test conditions, test design, and test execution. In addition, the Tester can participate in the setup of the test environment and give specifications for the test process and data.

Testers are responsible for recording evaluation results and testing when defects are found, so they have a role to monitor and ensure the collection of metrics related to work performance, ensuring product requirements tested and accurately delivered to the customer.

It can be seen that the Tester is not the person who directly creates the software or application, but the Tester is the person who creates and enhances the value of the product. So how will Tester perform testing work? Let’s find out more in part 2 below.


To perform testing effectively, professionally, testers need to carry out a certain process that ensures the quality objectives have been met.

Step 1: Analyze requirements

This step helps the Tester analyze all the requirements in the project, give a set of questions and answers to clear the product that his team will work on.

Step 2: Make a Test Plan

Executor: usually Test Leaders or more

The purpose of making a Test Plan helps to define the work of each member of the team; determine the test workload in the project; from there, determine the priority for the jobs; determine the level of risk of the Test Team and the risk of the project.

Step 3: Design Test Scenario (Test Case)

Test Case is considered an important part for the testing process in general and for testers in particular. Test Case presents test scenarios to execute software testing.

Step 4: Set up the test environment

Depending on the project, often this phase will have the support of programmers or the customer will be the one to set up the test environment.

Step 5: Test Execution

This is the step where the Tester directly executes the test, finds bugs in the software to ensure the quality of the product.

Step 6: Close the test cycle

To close the cycle, the Test Team will summarize and report on the testing process, how many bugs have been fixed, the severity of the bugs, which functions are still defective, which functions have been completed…

In order to become a Tester, in addition to the background knowledge and soft skills, nowadays, participating in Tester courses is a prerequisite to help provide directly related knowledge and skills. continuation of the Tester profession. Tester courses will be designed depending on the purpose, input and output of learners: Tester course for beginners, Advanced Tester course, …

With characteristics in the digital age, software industry, online exchange is increasingly popular and effective, especially in the context of social distancing to ensure safety before the Global Pandemic. Online Tester courses are also widely deployed and effective in training, bringing abundant human resources to the industry.