Answer the following:-(software engineering question) i)How are the test cases d

Question

Answer the following:-(software engineering question)

i)How are the test cases designed for the alpha beta and acceptance testing?Are te test cases for the three types of tests necessarily identical?

ii)Usability of software product is tested during which type of testing:unit,integration,system testing?How usability is tested?

iii)Suppose a developed software has successfully passed all the three levels of testing i.e.,unit ,integration and system testing.Can you claim that software is defect free?Justify

Explanation / Answer

Question i

Alpha, beta, and acceptance testing :

Alpha testing is done by the developing organization with the developing team on a newly developed software system.

Beta testing is done by the actual users under normal working conditions on an updated software or newly developed software.

Acceptance testing is done by the clients themselves with their dedicated testing team before accepting the work.

In the three above scenarios, the test cases will be different since the motive of the testing is entirely different

In alpha testing, developers have to make sure all the possible cases has the correct output

but in beta testing, the user deals with only the normal working, they are not bothered about the abnormal scenarios

whereas in acceptance testing the client test each and every possible test case values to ensure that the software doesn't contain even a single bug.

Question ii

Usability refers to the user-friendliness of the software.that is whether or not the user can navigate through the different parts of the software and understand the working of the software easily.

Usability can be done only after the entire system functionality is achieved, so usability testing is done at the system testing phase.

Usability is evaluated in such a way that when the user stuck at any point due to any confusion he can document to help it to be fixed.

Question iii

Even after passing all three levels, we cannot claim that the software is defect free. that is why all the software application update to newer versions with new fixes that are identified from the actual using of the software in the real world.

The software may show incompatibility issues on different hardware platforms or regular use may unveil new bugs and security loopholes.Also, confidential applications may have a threat of attacks or even hacking attempts so that the software may need to get fixed on those issues.

So we cannot claim the software as defect-free even after passing the three levels of testing.

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