Cartographic representations
From wiki.gis.com
In Esri ArcGIS, cartographic representations are defined multiple representation rules, overrides, and exceptional ways that symbols are rendered in a map to enhance presentation. They are designed especially for cartographers who need to manage how and where features are symbolized and depicted on a map.
Cartographic representations can store and render additional information with the geographic features on a map. With representations, you can produce multiple map products from a single master database.
Two fields are appended to the feature class attribute table that allow you to store the following visualization characteristics. Using a combination of these effects allows cartographers to use their skills to produce a wide variety of thematic maps. You can specify as many representations as needed for each feature class.[1]