Integration patterns are standardized methods used to connect different systems, applications, or services within software architecture. They help streamline communication and data exchange, ensuring that various components work together efficiently. Common integration patterns include message queues, API calls, and event-driven architectures, each serving specific use cases and requirements. These patterns provide a framework for developers to design and implement integrations, reducing complexity and improving maintainability. By following established patterns, teams can avoid common pitfalls and enhance the scalability of their systems. Understanding these patterns is essential for building robust and flexible software solutions.