This is the Ultimate in Database Systems

It is a kind of neural network of data with no limitations.
It can hold structured information on any subject, including itself.
It has built in version control and audit trails.
It allows data to be shared around the world in real time.

The basic data consists of just two main components, Objects and Relationships.

Objects are split into four main types, Items, Relationship Definitions, Comments & Lists (colours below).

Lists & Items

Lists can hold Lists and Items. For example, 

"Places" can be a List, "Countries" is a List under "Places", "England" is an Item under "Countries"
"England" is an item because it is an actual "Country".
"Planets" can also be a List under "Places" but "Countries" should not be a list under "Planets" as "Countries" are not little "Planets" they are a List in their own right. Countries could be inked to planets via a relationship.
You need to make sure you understand the difference between a List and an Item. 
All Items are linked to their Lists via the parent relationship.

Relationship Definitions

Relationships tie everything else together.

Child Links join "Places" to "Countries" and "Countries" to "England"
Child Items and Lists inherit Relationships from their parents.

User Defined Relationships can join one List or Item to another.

"London" has a Parent Link to its parent List "Cities" which might have a User Defined Relation ("Is a city in") to "England".
By definition, "England" would automatically have the Relation ("Contains") to "London".


Comments can be applied to Lists or Items to add information.

Relationship Definitions