A node in a graph model an entity
The model graph contains connected the nodes:
- containing any number of attributes (key-value-pairs).
- tagged with labels (to label, attach metadata—index or constraint information)
A node has also visual property such as (Network|Graph) - Node Position
The degree of a node is the number of edge that touch the node.
Since a edge always has a start and end node, you can’t delete a node without also deleting its associated relationships.
The relationship between nodes is known as an edge