Assume component A provides an interface P and requires an interface R. In order for a component B to be substituted for component A, what must be true?
A) The interface that B requires must be type conformant with respect to the interface that A provides.
B) The interface that B requires must be type conformant with respect to the interface that A requires, and the interface that B provides must be type conformant with respect to the interface that A provides.
C) The interface that A requires must be type conformant with respect to the interface that B provides.
D) Components must be related to each other via a dependency.

Question

Quizplus · Accepted Answer

Component B must provide an interface that is type conformant with the interface that A provides, and it must require an interface that is type conformant with the interface that A requires, to ensure compatibility and substitutability.

Assume Component a Provides an Interface P and Requires an Interface