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  • What is the test principle of COS?

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    What is the test principle of COS?


    (1) The test requirements are detailed and comprehensive, and all functions of the card should be tested.When an incorrect command is entered or the operation is incorrect, the program (COS) should be automatically aborted, giving information about the error, and the original data stored in the card cannot be changed.When designing COS, you should also consider how to divide the program modules for debugging.

    (3) From the design and production to the final product, the IC card has to go through multiple steps. Each step may produce waste products. In order to detect the unqualified intermediate products as early as possible, in principle, every step of the process must be tested.


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