Homework 1:match the activity with the phase of the object-oriented methodology

A.Brainstorming

B.Filtering

C.Scenarios

D.Responsibility algorithms

1.Reviewing list of possible classes，looking for duplicates or missing classes 

2.Asking “what if”questions

3.Assgining responsibilities to classes

4.Generating a first approximation to the list of classes in a problem

5.Assigning collaborators to a responsibility