Part I. Background.- Chapter 1. Introduction .- Chapter 2. Calculus of consent .- Chapter 3. The majority rule.- Chapter 4. Necessary and sufficient conditions.- Part II. Systems: their evaluation and justification.- Chapter 5. More than two alternatives.- Chapter 6. Strategic aspects .- Chapter 7. Sequential voting by veto .- Chapter 8. Criterion based choice of rules .- Chapter 9. The stability of voting rules.- Chapter 10. Two methods based on ratings.- Chapter 11. Qualified majorities and expert choice.- Chapter 12. Representativeness.- Chapter 13. Deliberation and voting.- Part III. Framework and process of the choice of rules.- Chapter 14. The business context.- Chapter 15. An overview of the MCDM/A methods.- Chapter 16. A MCDM framework for the choice of rules.- Chapter 17. Building the Consequence Matrix with frequency of properties' violations.- Part IV. Framework and process of the choice of rules.- Chapter 18. Guidelines for Using the framework in business context.- Chapter 19. Using the framework in business context - Application 1.- Chapter 20. Using the framework in business context - Application 2.- Chapter 21. Using the framework in business context - Application 3.- Chapter 22. When does a given procedure work best?.