Define the terms software testing, integration testing, system testing, and regression testing.

Briefly describe the different types of regression testing. What is the overall goal of testing? $($in at most two

sentences$)$

Briefly describe the different types of system testing.

Outline an algorithm to generate an ordering of classes during integration testing given a class

dependency graph. Assume that the dependency graph contains cycles.

b$.$ Generate and integration test order for the following class dependency graph and identify all stubs

required during integration testing for the following dependency graph. Show all working.