8.1 Data Quality Assertions8.2 Data Quality Assertions as Business Rules8.3 The Nine Classes of Data Quality Rules8.4 Null Value Rules8.5 Value Manipulation Operators and Functions8.6 Value Rules8.7 Domain Membership Rules8.8 Domain Mappings and Relations on Finite Defined Domains8.9 Relation Rules8.10 Table, Cross-Table, and Cross-Message Assertions8.11 In-Process Rules8.12 Operational Rules8.13 Other Rules8.14 Rule Management, Compilation, and Validation8.15 Rule Ordering8.16 Summary