Which of the following is NOT one of the four integration primitives?

The correct answer is that "Methods" is not one of the four integration primitives. In the context of MuleSoft and its integration architecture, the four integration primitives are Components, Messages, Connectors, and Interfaces.

Components represent the building blocks of a Mule application, which perform specific tasks, such as processing data or calling APIs. Messages are the data that flows through the integration. Connectors are used to connect applications or systems, enabling them to communicate with each other. Interfaces define the points of interaction between different systems or components.

The term "Methods," while relevant in various programming and integration contexts (such as describing functions or operations), does not specifically pertain to the foundational concepts in MuleSoft's integration framework. Thus, distinguishing between these concepts helps clarify the role that each primitive plays in the overall integration strategy, making it important to understand their definitions and applications within MuleSoft.