Usage

The Usage tab is available on all Connections , Conditions , Models , Instances , Pipelines , and Dictionaries.

The Usage tab displays an interactive graph that visualizes data flow dependencies for the selected entity. The current entity is shown as the focal node, highlighted at the center of the graph. All other entities that either supply data to or receive data from the focal node are shown as connected cards arranged around it.

Directed edges between nodes are labeled to describe the nature of each relationship:

• Reads From — the source node supplies data to the target node.
• Queries From — the source node issues queries to retrieve data from the target node.
• Writes To — the source node sends data to the target node.
• Calls — the source node invokes the target (e.g., a pipeline stage calling a function or external service).
• Resolves Template From — the source node uses the target to resolve a template at runtime.
• Instance Of — the source node is an instance created from the target model.
• Extends Model — the source model inherits from the target model.
• Uses Model — the source node references the target model without being a direct instance of it.

Each node card displays the entity type (Connection, Instance, Pipeline, Output, etc.) and its name. Clicking any entity name opens its configuration page in a new tab. Nodes that have not yet been expanded show a + badge. Clicking the node loads and displays that node’s own upstream and downstream dependencies, extending the graph in the same view.

Use the Collapse All button to reset the graph back to the focal node’s immediate connections.

In the example below, the Connection OSIsoft_PI is the focal node. The Pipeline ETL_Pipeline reads from it on the left, and the Pipeline Historian_Pipeline writes to it on the right, showing that this connection sits between two pipelines in the data flow:

In the example below, the Pipeline Dashboard_Pipeline is the focal node. Multiple Instances supply data to the pipeline via Reads From edges, while the pipeline writes to Outputs and a Connection downstream via Writes To edges: