An edge model a relationship between two node in a graph. Every edge model therefore a binary relationship (relationship between two elements) .
An Edge is also known as:
- Arrows (only for directed graph)
A edge in a property graph always has:
- a direction, (that can be navigated regardless of direction)
- a type,
- two nodes (a start node and an end node if directed).
- quantitative properties (such as weights, costs, distances, ratings, time intervals, or strengths)
An existing edge will never point to a non-existing node.
A sequence of edges between two nodes is called a path
Edge can be represented in term of linear algebra vectors