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What is a property graph?

In graph modeling, a property graph represents a well-defined structure consisting of nodes and edges, which can be associated with properties. These fundamental elements form a simple toolkit for modeling complex systems intuitively and powerfully.


Nodes serve as fundamental building blocks and can be used to represent anything, for example, real-world objects like pumps:


Edges denote relationships between nodes. This example adds a valve node and an edge to illustrate their connection:


Nodes and edges can have properties that provide additional context or information. These properties can include types, such as Pump or flows-to, but they can also include other attributes describing the nodes and edges. For example: