What is the primary function of metadata?

The primary function of metadata is to describe data about data. This means that metadata provides essential information regarding the characteristics of a dataset, such as its content, context, format, and structure. It helps users understand the nature of the underlying data, how it can be used, and any relevant details that may impact its interpretation or application. For instance, in the context of a digital photo, metadata can include information such as the date and time the photo was taken, camera settings, and location data, all of which enrich the overall understanding of the image.

In contrast, providing visual examples pertains to direct representation of data rather than its description. Storing user preferences relates to personalization of data interaction, which goes beyond merely describing the data itself. Enhancing digital images involves modifying the visual attributes of the image, not describing it or its accompanying data. Thus, the option that accurately captures the essence of metadata is its role in describing data about data, which is fundamental in data management and organization.