Design and Implementation

Which test refers to the retesting of a unit, integration and system after modification, in order to ascertain that the change has not introduced new faults ?

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Which test refers to the retesting of a unit, integration and system after modification, in order to ascertain that the change has not introduced new faults ?

A. Regression Test
B. Smoke Test
C. Alpha Test
D. Beta Test

Explanation: Regression test seeks to uncover new software bugs in existing functional and non-functional areas of a system after changes have been made to them.

In which test design each input is tested at both ends of its valid range and just outside its valid range ?

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In which test design each input is tested at both ends of its valid range and just outside its valid range ?

A. Boundary value testing
B. Equivalence class partitioning
C. Boundary value testing AND Equivalence class partitioning
D. Decision tables

Explanation: Boundary value analysis is a software testing technique in which tests are designed to include representatives of boundary values.

When does the testing process stops ?

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When does the testing process stops ?

A. When resources (time and budget) are over
B. When some coverage is reached
C. When quality criterion is reached
D. Testing never ends

Explanation: As software testing is an exhaustive process, when the quality assurance is established and the product is ready to be delivered, testing is stopped.

In factory method pattern, the framework must instantiate classes but it only knows about the abstract classes, which it cannot initiate. How would one solve this problem ?

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In factory method pattern, the framework must instantiate classes but it only knows about the abstract classes, which it cannot initiate. How would one solve this problem ?

A. encapsulating the knowledge of which document subclass to is to be created and
B. moving this knowledge out of the framework
C. instantiating the application specific documents without knowing their class
D. all of the mentioned

Explanation: Following all the options in order will solve the factory method problem.