11 . 2 Study objectives 147 11 . 3 Approach to analysis 147 11. 4 Presentation and discussion of results 151 11 . 5 Conclusions 165 12 Accident management and failure analysis G. C. Meggitt 170 12. 1 Introduction 170 12. 2 Nuclear safety 170 12. 3 The accident 171 12. 4 The accident response 171 12. 5 The automatic response 171 12. 6 The tailored response 173 12. 7 The emergency plan 181 13 Decision support systems and emergency management M. Grauer 182 13. 1 Introduction 182 13. 2 The problem 183 13. 3 The multiple-criteria approach 184 3 13. 4 OveNiew of the 1-decision support software 186 13. 5 A case study from chemical industry 189 13. 6 Conclusions 195 References 196 14 Safety integrity management using expert systems Dr P. Andow 198 14. 1 Introduction 198 14. 2 Safety and risk analysis 198 14. 3 The effects of applying safety and risk analysis 199 14. 4 Safety integrity management 201 14. 5 Knowledge-base contents 204 14. 6 Summary of system functions 204 14. 7 Discussion 205 References 205 15 Power system alarm analysis and fault diagnosis using expert systems P. H. Ashmole 207 15. 1 Introduction 207 15. 2 Expert systems for power system alarm analysis already developed 208 15. 3 Existing substation control arrangements 209 15. 4 Discussion of alarm data flow 210 15. 5 Expert system requirements 210 15. 6 User interface 211 15. 7 Requirements under different fault conditions 211 15.