Problem 3
What is the difference between a join point and a pointcut? Explain how these facilitate the weaving of code into a program to handle cross-cutting concerns.
Problem 4
What assumptions underlie the idea that a system should be organized as a core system that implements the essential requirements, plus extensions that implement additional functionality? Can you think of systems where this model would not be appropriate?
Problem 9
Explain why expressing pointcut specifications as patterns increases the problems of testing aspect-oriented programs. To answer this, think about how program testing normally involves comparing the expected output to the actual output produced by a program.
Problem 10
Suggest how you could use aspects to simplify the debugging of programs.
