What is 'metadata' in the context of data management?

Metadata is essential in data management because it serves as descriptive information about other data. This includes attributes such as content, format, context, and structure, which help users and systems understand the nature of the data itself. For instance, in a database, metadata might describe the types of data contained within each column in a table or the relationships between different tables. This information is crucial for data retrieval, organization, and interpretation, allowing users to efficiently locate and utilize the data based on its characteristics.

In addition to providing context, metadata also supports data governance and management tasks, such as data lineage tracking, ensuring data quality, and compliance with data standards. Overall, understanding metadata is vital for effective data management, as it enhances the discoverability and usability of data across various applications.