Which term refers to the permitted values of an attribute in a data context?

The term that refers to the permitted values of an attribute in a data context is "Domain." In databases and data modeling, a domain represents the complete set of allowable values that a particular attribute can take. For example, if you have an attribute for "Age," the domain might be defined as all integer values from 0 to 120, indicating what is considered a valid age.

Understanding domains is fundamental in ensuring data integrity, as it helps to enforce rules about what constitutes valid data. By specifying domains, databases can prevent users from entering invalid or nonsensical data, ultimately leading to more accurate and reliable data management.

The other terms, while relevant in the field of databases, refer to different concepts. A schema describes the structure of the database, including tables, fields, and relationships. A table is a collection of data organized into rows and columns, representing a specific entity. A tuple is a single entry or record within a table, consisting of a specific set of values for the attributes defined in that table. Each of these terms plays a significant role in the organization and management of data, but none directly corresponds to the notion of permitted values for an attribute like "Domain" does.