exercises 11. user support

	EXERCISE 11.8 Describe some of the different approaches to providing user support systems, with examples. answer available for tutors only		Other exercises in this chapter ex.11.1 (ans), ex.11.2 (ans), ex.11.3 (ans), ex.11.4 (ans), ex.11.5 (tut), ex.11.6 (tut), ex.11.7 (tut), ex.11.8 (tut), ex.11.9 (tut), ex.11.10 (tut) all exercises for this chapter