Data Dictionary Process

What is a Data Dictionary?

A Data Dictionary is a centralized repository that describes all data elements in a database, including their definitions, formats, and relationships.

Contents in CMMI-DCC

• Variable Names: Column names in datasets
• Descriptions: What each variable represents
• Data Types: Numeric, text, date, etc.
• Units: Measurement units
• Valid Values: Allowed values or ranges
• Relationships: How variables relate to each other

Accessing

Navigate to Lab Data -> Data Dictionary

Uses

• Understanding available data
• Planning analyses
• Ensuring correct data interpretation
• Preparing upload files

Related Terms

• Metadata: Descriptive data information
• BCGP: Has its own data dictionary