Domains can be identified in different ways including: data type; data format; list; range; and rule-based.
Project that use personal data should have a disciplined approach to the use of that data. They should account for:
Record management starts with a vague definition of what constitutes a record.
Companies do not rely on their information systems to run their operations.
A metadata repository is essential to assure the integrity and consistent use of an enterprise data model across business processes.
Data profiling also includes cross-column analysis, which can identify overlapping or duplicate columns and expose embedded value dependencies.