What is the main function of metadata in data management?

The main function of metadata in data management is to provide information about the source and description of the data. Metadata serves as a critical component that helps users understand the data they are working with. It includes details such as the data's origin, the date it was created, the formats used, the methods of data collection, and the quality of the data. This information allows users to assess the relevance and reliability of the data for their specific applications.

Metadata plays a crucial role in data sharing and discovery, as it helps in organizing and cataloging datasets, making it easier for users to find the information they need. It enhances the usability of datasets by offering context and guiding users on how to appropriately apply and interpret the data. Therefore, having robust metadata is essential for effective data management in GIS and other fields, as it facilitates informed decision-making and ensures that data is used correctly.