|An article is content that is typically organized by category or keyword.|
|A blog is content that is typically presented as reverse chronologically sorted on a single topic.|
|Abstract class. A categorized item belongs to one or more categories.|
|A category organizes other items and is contained in a hierarchy.|
|Abstract base class. An item is something in a site or app that users can view or otherwise engage with. Typical examples are products, articles and blogs.|
|A line item contains a single |
EVGItem subclass and the quantity that were ordered.
|Location to associate with an Item, for example for filtering reasons if a product is only available in an area.|
|An order sent upon user checkout. The order contains a total purchase value and line items representing each product and quantity.|
|A product is an item that can be sold to users. Products can be added to |
EVGLineItem objects when they have been ordered by the user.
|A user-created review of an item.|
|Additional tags about an item such as Brand for products or Author and Keywords for articles.|