SOA design patterns are reusable solutions to a commonly occurring SOA design problems.

Some common SOA patterns include:

Enterprise Service Bus - A tool that fosters service communication by providing reliable messaging, message queuing, data transformations and service broker functionality.

File Gateway - A file gateway is placed between a service and legacy flat file. The gateway acts as a mediator and can perform data transformations.

Event Driven Messaging - The service notifies its consumers of relevant events with messages.

Service Callback - A service requires that consumers communicate with it asynchronously. Consumers provide a callback address to which the service can send response messages.