Tasks and responsibilities of the test team and basic concepts of testing

　　 After the software system development is completed , Must be tested and evaluated , To determine whether the software quality reaches the predetermined goal , Only in this way can the software system run safely and reliably . Through software testing, we can find out as many hidden errors and defects as possible , Modify and make up in time . Software testing will directly affect the final quality of software products .

　　 The task of the test group is to test the gap between the developed software product and the specified requirements and its applicability in application with the highest possible accuracy . If defects are found , The software product cannot pass the acceptance and use , And return to the development team . Another task of the test team is to develop a software application plan , Responsible for planning how to use the program and database correctly in the production field .

　　 The responsibility of the test team is to determine the test process 、 Test plan and organize test process and execute test , But not responsible for testing the quality of the system .

　　 The test group can effectively 、 The key factor to successfully complete the task is to have special test equipment 、 Modern test database and test tools .

　　 In the process of software development , It is necessary to adopt analytical quality assurance measures to test and evaluate software products . The quality assurance measures analyzed include static test and dynamic test . Static testing is analyzing software 、 During inspection and testing , Not actually running the program being tested . Dynamic testing is to test the dynamic characteristics of software and the correctness of running results by running programs , And the process of evaluating the program according to the running process of the program . Dynamic testing is a process of testing based on experience . It tries to use quantitative input , Rely on experience to adjust the program , Make the deviation from the specification within the allowable range , The allowable value depends on the quality requirements . Dynamic testing can also be seen as a process of evaluating and verifying systems or system components , It uses manual or automatic methods to distinguish the difference between actual results and expected results , And make the system meet the specified requirements .

　　 Technical concepts commonly used in dynamic testing ：

　　1、 test ： It can be seen as the process of running a program , The goal is to find the error .

　　2、 debugging ： The process of finding out what caused the error . It should specify how to correct errors 、 Check for changes

　　 The impact on the program and make modifications . Retest after debugging errors .

　　3、 error ： Is the calculated value 、 Observed value 、 Between measurements , Or between the condition and the true value , Do not conform to the

　　 A specified or theoretically correct value or condition .

　　4、 defects ： It refers to the deviation from the expected value or characteristic value . Defects can affect the functionality of a program , for example ：

　　 A program may have good functions , But its maintainability may be very poor . Defects can

　　 Occurs in all characteristics specified in the product quality specification .

　　5、 invalid ： It refers to the loss of the ability of functional components to perform their functions . The failure or influence of a component is large

　　 The operation of high-level units may have serious consequences . Failure will affect the reliability of the product .

　　6、 fault ： It means that the functional unit cannot perform the required function . There may be an error 、 Defect or failure

　　 cause . Failure can affect the effectiveness of the program .

　　 For more information on testing techniques, please pay attention to ： Shenzhen duosurveyor software and Technical Service Co., Ltd a