An IT integration team followed an API-led connectivity approach to implement an order-fulfillment business process.

Orchestration:This refers to the logic where a central controller (theProcess API) manages the interactions between multiple systems to achieve a business goal.

The Scenario:The API is "coordinating stateful interactions" (e.g., Step 1: Validate Customer -> Step 2: Check Inventory -> Step 3: Debit Payment -> Step 4: Create Shipment). This strictly sequential or logic-driven coordination is the definition ofOrchestration.

Why others are incorrect:

Aggregation:Specifically refers to just gathering data from multiple sources (Scatter-Gather) and combining the results, usually without complex state management or sequential logic.

Streaming:Refers to processing data in continuous chunks, not the logic of coordinating services.