The collection of data items maintained by a registry is called a data set.

• A. Data set
• B. Data dictionary
• C. Standard data item
• D. Interoperability

Answer: (A)

The collection of data items kept together in a registry is a data set. This is the actual bundle of information that the registry collects and maintains for reporting and analysis. A data dictionary holds definitions and metadata about the data elements, not the items themselves. A standard data item refers to a single predefined element used within datasets. Interoperability describes how well systems can exchange and interpret data, not the collection itself. So the term for the registry’s assembled items is data set.