A Connected System is the Appian design object specifically created to store and manage connection information for an external system. It centralizes the base URL, authentication method, and credentials. This allows multiple integration objects, which define the specific operations or endpoints, to reference the same Connected System. By doing so, developers can reuse the connection and authentication details without duplicating them, which simplifies maintenance and enhances security. If credentials or the base URL change, they only need to be updated in the single Connected System object.

1. Appian Documentation

"Connected System Object": The introduction states

"Connected system objects represent an external system and contain all the information necessary to connect to that system... This allows you to create multiple integrations that all use the same connected system."

2. Appian Documentation

"Integration Object": In the "Configuration" section

it details that an integration must be configured with a connected system. It states

"The connection details

such as the server and authentication

are configured in the connected system." This confirms that the integration object consumes details from the connected system.

3. Appian Documentation

"Creating Integrations": This guide outlines the standard development pattern: "Before you create an integration

you'll need to create a connected system to store the base URL and authentication details for the external system you want to connect to." This explicitly defines the Connected System's role as the prerequisite for sharing connection details.