> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getgalaxy.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Edges
> Connecting nodes into a living graph in Galaxy
## **What is an Edge?**
An **Edge** defines how two nodes are connected.
If Nodes are the nouns of your context graph, Edges are the verbs.
Examples:
* Customer **places** Order
* Order **contains** Product
* Employee **works on** Project
* Account **belongs to** Organization
* Firm **invested in** Company
Without edges, you only have isolated concepts. With edges, you can answer questions like:
* Which customers bought this product?
* Which invoices belong to this account?
* Who is responsible for this deal?
* How are these two entities connected?
## **Representing Data as Edges**
Nodes define the main entities of your graph. Edges define how those things interact. Edges can represent many kinds of connections. Some examples:
| **Source Node** | **Edge** | **Target Node** |
| :-------------- | :--------- | :-------------- |
| Customer | places | Order |
| Order | contains | Product |
| Employee | manages | Account |
| Department | includes | Employee |
| Invoice | references | Contract |
Every edge in Galaxy includes several layers of information:
Ex: PLACES
Ex: Customer A
Ex: Order
This is how we map back to your sources.
## **What’s Next**
You now understand the core concepts behind your context graph. The next step is to start building.
Connect your sources
Build your context graph