What term is used for a set of data that describes and provides information about other data?

The correct term for a set of data that describes and provides information about other data is "Metadata." Metadata serves as a crucial component in data management, as it helps to facilitate the understanding, use, and organization of data. It often includes elements such as the source of the data, its format, and its structure, which can provide context and enhance the usability of the primary data.

For example, in a database, metadata might describe the types of data contained in various fields (such as text, number, or date), the relationships between tables, or the various constraints that apply. By understanding the metadata, users can more effectively locate, analyze, and apply the data for their needs.

While the other options might seem relevant in certain contexts, they do not specifically define the concept of describing data. A data dictionary is a specific type of metadata that lists definitions and characteristics of data elements within a system, but it is not a broad term that captures the overall concept. "Profiles" and "attributes," while related to data, do not encapsulate the comprehensive definition of information about data as effectively as metadata does.