by kirupa | 5 January 2007
In the real world, you categorize and sub-categorize your environment based on the objects that can be found in it. For example, you have a chair which can be categorized as furniture. Your refrigerator can be categorized as an appliance. There are many such examples where a specific object is classified by a more general category.
This is a companion discussion topic for the original entry at https://www.kirupa.com/net/classes.htm
