The DELAY signal signals the delaying of a service execution or call.

An example of signaling during the execution of a service request.

S1 EMIT    START
S1 EMIT    DELAY
S1 EMIT    SUCCEED
S1 EMIT    STOP

An example of signaling from the perspective of both ends in a service-to-service interaction.

S1 CONTEXT          |  S2 CONTEXT
------------------------------------------
S1 EMIT    START    |    
S2 EMIT    CALL     |    
                    |  S2 EMIT    START
                    |  S2 EMIT    DELAY
                    |  S2 EMIT    SUCCEED
                    |  S2 EMIT    STOP
S2 RECEIPT SUCCEED  |
S1 EMIT    SUCCEED  |
S1 EMIT    STOP     |

An example of signaling from the perspective of both ends in a service-to-service interaction in which the service name was transferred with the request payload.

S1 CONTEXT          |  S2 CONTEXT
------------------------------------------
S1 EMIT    START    |    
S2 EMIT    CALL     |    
                    |  S2 EMIT    START
                    |  S1 RECEIPT CALL
                    |  S1 EMIT    DELAY
                    |  S2 EMIT    DELAY
                    |  S1 EMIT    SUCCEED
                    |  S2 EMIT    SUCCEED
                    |  S2 EMIT    STOP
S2 RECEIPT SUCCEED  |
S1 EMIT    SUCCEED  |
S1 EMIT    STOP     |