List of Figures

Chapter 1: The Data Quality Problem

Figure 1.1: Examples of cross-company systems.

Figure 1.2: Demands on operational databases.

Figure 1.3: Reasons not much has been done about quality problems.

Chapter 2: Definition of Accurate Data

Figure 2.1: Breakdown of data within a set of data.

Figure 2.2: Chart of accurate/inaccurate values and those that are findable and fixable.

Figure 2.3: Effects of improvements.

Figure 2.4: Step function influence on tolerance levels.

Chapter 3: Sources of Inaccurate Data

Figure 3.1: Areas where inaccuracies occur.

Figure 3.2: Accuracy of decayable elements over time.

Figure 3.3: List of projects that require restructuring and movement of data.

Figure 3.4: Steps in the data movement process.

Chapter 4: Data Quality Assurance

Figure 4.1: Components of a data quality assurance group.

Figure 4.2: Components of a data quality assurance program.

Figure 4.3: Methodology comparisons.

Chapter 5: Data Quality Issues Management

Figure 5.1: Issue management phases.

Figure 5.2: Factors in evaluating data capture processes in the data capture environment.

Figure 5.3: Data quality issue remedy types.

Chapter 6: The Business Case for Accurate Data

Figure 6.1: General model of business case.

Figure 6.2: Project selection criteria.

Figure 6.3: The business case for project services.

Chapter 7: Data Profiling Overview

Figure 7.1: Data profiling model.

Figure 7.2: Data profiling steps.

Figure 7.3: Example of a business object.

Chapter 8: Column Property Analysis

Figure 8.1: Definitional elements.

Figure 8.2: Typical properties.

Figure 8.3: Example of domain versus property definitions.

Figure 8.4: Column property analysis process.

Figure 8.5: Typical data types.

Figure 8.6: List of valid value rule types.

Chapter 9: Structure Analysis

Figure 9.1: Functional dependencies.

Figure 9.2: Keys.

Figure 9.3: Example of data in normal forms.

Figure 9.4: Examples of denormalized tables.

Figure 9.5: Synonym types.

Figure 9.6: Structure analysis process.

Figure 9.7: Multiple-column synonym example.

Figure 9.8: Synonym classifications.

Chapter 10: Simple Data Rule Analysis

Figure 10.1: Process for analyzing simple data rules.

Chapter 11: Complex Data Rule Analysis

Figure 11.1: Process for profiling complex data rules.

Chapter 12: Value Rule Analysis

Figure 12.1: Value rule analysis process

Appendix A: Examples of Column Properties, Data Structure, Data Rules, and Value Rules

Figure A.I: Table diagram.