EA - IT Architecture V2 > Architecture Specification > Describing information exchanges > Using a Service Interface Template > Presentation of standard service interface Templates
Presentation of standard service interface Templates
Service interface templates are provided to simplify the creation of your service interfaces. These service interfaces are supported by service operation templates.
Some service interface templates are provided with the solution.
The service interface template “One way communication” 
 
“One way communication” service interface template diagram (BPMN)
This service interface is based on an service operation used noted “One way communication” between the consumer and the provider.
*A service operation use represents the usage of a service operation in an service interface.
The service operation used represents the content “(Template) Data” exchanged between the consumer and the provider.
“One way communication” service operation diagram (BPMN)
The service interface template “Request-Response” 
“Request-Response” service interface template diagram (BPMN)
This service interface is based on an service operation used noted “Request-Response ” between the consumer and the provider.
*A service operation use represents the usage of a service operation in an service interface.
The service operation used represents the service operations of the contents “(Template) Request” and “(Template) Response” exchanged between the consumer and the provider.
“Request-Response” service operation diagram (BPMN)
This service operation represents the sending of a request content and the sending of the response content.
The service interface template “Publish-Subscribe” 
 
“Publish-Subscribe” Service interface Diagram (BPMN)
This service interface is based on a service operation used noted “Publish-Subscribe” between the consumer and the provider. The request for subscription is sent. An event represents the waiting time before the acceptance for publication.
Accessing the list of service interface templates
To access the list service interface templates of a repository:
*From the Administration navigation menu, select Templates > Service Interfaces.
The list of service interface templates appears.
In the same way, to access to the list of service operation templates:
*From the Administration navigation menu, select Templates > Service Operations.
The list of service operation templates appears.
Furthermore, to access the list of content templates:
*From the Administration navigation menu, select Templates > Contents.
The list of content templates appears.