What is define facets?

In the context of data modeling, a facet refers to a unique characteristic or attribute of a specific entity or data object. Essentially, facets are used to define and describe the distinct aspects or properties of a given data object or entity.

For example, if you are designing a database for a music streaming service, you may define facets for each song, such as artist, album, genre, length, release date, etc. These facets provide a more detailed and comprehensive understanding of each individual song in the database, and allow for more accurate and specific searches and queries.

Facets are often used in data analysis and visualization to categorize and group data according to specific attributes or characteristics. This can be especially helpful in identifying patterns, trends, and insights within large datasets.