Oracle Integration Cloud (OIC) supports a variety of integration styles to address different business requirements. Understanding these styles is important for architecting solutions that are robust, scalable, and maintainable. Here are the main integration styles available in OIC:

1. Basic Routing Integration

This is the simplest form of integration where data is moved from one system to another without any transformation. It is also known as “pass-through” integration. This can be used when the data format and protocols are compatible between the source and target systems.

1. Orchestration Integration

Orchestration involves coordinating multiple services or systems to perform a sequence of operations, often involving complex business logic, branching, and parallel processing. This is used for more complex business processes that require coordination across multiple steps and services.

1. App-driven Orchestration

This style is similar to orchestration but is specifically triggered by an application event. It’s used when a process needs to start based on a change or an event within an application, such as the creation of a new record in a CRM system.

1. Publish/Subscribe Integration

Publish/subscribe integrations involve sending messages from one system to multiple subscribers. The system that sends the message publishes it to a topic, and all subscribers to that topic receive the message. This is useful when the same information needs to be sent to multiple systems.

1. Batch Data Integration

Used for high-volume data transfers that don’t need to be processed in real-time. Data is collected over a certain period, batched, and then processed as a single unit. This style is often used for end-of-day processes, reporting, or data synchronization tasks.

1. File Transfer Integration

This involves transferring files between systems or locations. It can be seen as a specialized form of batch data integration where the data is specifically in file form. This is commonly used for bulk data exchanges, backups, or when interfacing with systems that require file-based data input/output.

1. API-led Integration

In API-led integration, APIs are used as the building blocks of the integration architecture. This allows for modular, reusable, and decoupled services. REST and SOAP APIs are commonly used in this style to create services that can be consumed by various clients.

1. Real-time Synchronization

This integration style focuses on ensuring that data is synchronized in real-time between systems. It’s commonly used when it’s critical that systems reflect the same information at all times, such as inventory levels between an online store and a warehouse management system.

1. Business Process Automation

Automation of a business process that involves multiple steps, decisions, and integration points. In OIC, this might involve using Process Automation capabilities to design and implement a workflow that reflects a business process.

1. Event-Driven Integration

Event-driven architectures are supported where integrations are triggered by events. These can be internal events within applications or external events from partners or third-party services.