There are several types of QA which common today in the industry.
Each type of QA obviously comes in order to answer a specific need.
It is important to identify what are needs and not expect wrong things of the wrong types of QA
Unit Tester - The unit tester in general is one of the first to perform QA on the product , this type of QA will usually be done with in the development team, prior to releasing any version, this is basically a preliminary verification that the component functions as expected to a controlled (simulated) set of inputs and produces the expected outputs (results).
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Black box / Functionality testing - This type of testing does not require the tester to have any familiarity with the architecture/technology of the tested component, he generally performs a predefined set of actions (inputs) and expects an appropriate response (output) in turn. This is usually the kind of tester people associate with testing , some one going over a graphical interface, checking all the check boxes and different screens. obviously the skills required for such QA are not high, unfortunately some think this type reflect on all QA.
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System/ E2E testing - This type of QA usually involves high level QA ... there may not be drill down to a specific functionality but in this type of QA you most certainly have to have a good familiarity with the system flow and its architecture, further to this you must be very well versed in the technology relevant to this product ;e.g., for a telephony system you will have to have telephony protocol familiarity.
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White Box Testing - This type of QA depends on the QA's familiarity with the technology in question in order to be able to challenge the application/product, in some respect the type of person required for this type of QA is similar to the E2E tester, how ever this QA will perform drill down testing on the product.
Each type of QA obviously comes in order to answer a specific need.
It is important to identify what are needs and not expect wrong things of the wrong types of QA
Unit Tester - The unit tester in general is one of the first to perform QA on the product , this type of QA will usually be done with in the development team, prior to releasing any version, this is basically a preliminary verification that the component functions as expected to a controlled (simulated) set of inputs and produces the expected outputs (results).
========================================================================
Black box / Functionality testing - This type of testing does not require the tester to have any familiarity with the architecture/technology of the tested component, he generally performs a predefined set of actions (inputs) and expects an appropriate response (output) in turn. This is usually the kind of tester people associate with testing , some one going over a graphical interface, checking all the check boxes and different screens. obviously the skills required for such QA are not high, unfortunately some think this type reflect on all QA.
========================================================================
System/ E2E testing - This type of QA usually involves high level QA ... there may not be drill down to a specific functionality but in this type of QA you most certainly have to have a good familiarity with the system flow and its architecture, further to this you must be very well versed in the technology relevant to this product ;e.g., for a telephony system you will have to have telephony protocol familiarity.
========================================================================
White Box Testing - This type of QA depends on the QA's familiarity with the technology in question in order to be able to challenge the application/product, in some respect the type of person required for this type of QA is similar to the E2E tester, how ever this QA will perform drill down testing on the product.
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