exercises 19. groupware

	EXERCISE 19.7 What is meant by the terms control and feedback and feedthrough in the classification by function framework? answer available for tutors only		Other exercises in this chapter ex.19.1 (ans), ex.19.2 (ans), ex.19.3 (tut), ex.19.4 (tut), ex.19.5 (tut), ex.19.6 (tut), ex.19.7 (tut), ex.19.8 (tut), ex.19.9 (tut), ex.19.10 (tut), ex.19.11 (tut), ex.19.12 (tut) all exercises for this chapter