Question 3 2 pts Match the software process model on the left with the correct description on the right. waterfall model Choose ] [ Choose ] the phases of the software life cycle are followed rigorously in order the software is developed by building a core functionality first, and adding features to it later involves the creation of one or more periodic mock-ups that are reviewed by the customer a full version of the software is developed first, and the existing functionality is improved later incremental model stepwise refinement model [Choose rapid prototyping model [Choose ] Question 4 2 pts Acceptance testing generally refers to the testing of what artifact created during software development? O the suite of test cases O a high-level design diagram O the user requirements O a single unit of source code