Asset data is the nickname of a collection of scripts that for a system initially introduced by Seteron, it beingb v a way to get assets in a more practical manner than using Resources.Load("AssetName").
With Asset data, however we use static classes with the corresponding to the asset name, so finding an asset is a manner of knowing the asset name in order to load it.
Comparison:
In this example, the asset has to be named BikeHornand searched by stringin order to be found, and has to be placed into an Editor folder. This prevents it from working at runtime. So we won't be able to do this ingame.