A Workflow is the orchestrator of your data architecture. Workflows execute a series of actions sequentially by default (with optional parallel branches). Workflows manage control flow rather than streaming individual rows: they check prerequisites, prepare environments, execute pipelines, manage files, handle errors, and send notifications. Hops in a workflow decide which path to follow based on whether an action succeeded or failed. See Workflows for in-depth orchestration concepts, decision backtracking, and scheduling scenarios.