KVItems (key/value items) is a database that stores items.

Items have an ordered list of properties. Properties have a key and a value. An item can have multiple properties with the same key.

The ID property serves as the identifier for an item. In order to update an item, you simply save a new item with the same ID.

IDs are also used to interconnect items. In order to link to another item, an item will just mention that item's ID in a property value. This will create a link at the source item and a reverse link at the target item. When Hendrik has Friend: Martin, then Martin gets Friend-of: Hendrik.

The database provides a web frontend and HTTP API to let users create / read / update / delete items, as they like.

In order to fulfill basic database needs, KVItems defines a reduced set of special properties, which are interpreted. See Modules for details.