Quality Statements

The DDI Alliance’s Data Documentation Initiative standard, DDI-Lifecycle 3.3 (DDI), supports quality statements about studies, datasets, and other information objects. The DDI structure is simple but flexible. A quality statement consists of two parts:

• Citation of the Quality Standard being used

• A collection of Compliance Statements, each containing a reference to a concept and the content of the statement

The concepts referenced by each compliance statement may refer to concepts from a hierarchical concept system.

• Define a Quality Standard
• Quality Standards for SIMS, ESQRS, and ESMS SDMX
• Create a Quality Statement
• Create Quality Fields from Concepts
• Publish to PDF
• Specify Site-wide Information to be used in all Quality Statements