How is it possible to integrate the service applications in Sharepoint 2010?

How is it possible to integrate the service applications in Sharepoint 2010?

- Service application can be integrated directly to Sharepoint 2010 by using the SOA bus.

- REST/SOAP web service application programming interface (APIs) can be used too to integrate the service application.

- Client Object Model API can be used to integrate the service application that works with the JavaScript and Silverlight as well.

- Application-to-Application integration method can be used with the Sharepoint 2010 to show the extension’s functionality.

- Web parts can be used as it allows to provide and show the new functionality when a page is added.