Flow Of Events While Sending Message From One Serivce Two Another

Hello,

I want to know the exact flow of events when I use this statement:

BEGIN DIALOG CONVERSATION @dialog_handle
FROM SERVICE [SERVICE1]
TO SERVICE 'SERVICE2'
ON CONTRACT [MainContract]

Assuming that I have defined SERVICE1 for Queue1 in the initiator ,

and I have defined SERVICE2 for queue2 on the target.

Is this the flow:

1.Message first goes to the queue1
or
it directly goes to the SERVICE2 on target end point which in turn puts this message in Queue2 on the target?

2. target queue then activates the stored procedure which is connected to queue2 (let's say the procedure name is 'Processqueue2')

3.I noticed that even when none of the item comes in the queue, still when u use "ALTER QUEUE queue2 WITH STATUS = ON", that time also the 'processqueue2' is called.

4.'processqueue2' then fetch message from queue2 and process this. optionally it can send the acknowledgement message to the initiator or just send the end dialog message.

5.if i dont want 'processqueue2' to send the acknowledgement then
can I can directly send the End dialog from the inititor it self i.e. the end dialog just after sending the message.


BEGIN DIALOG CONVERSATION @dialog_handle
FROM SERVICE [SERVICE1]
TO SERVICE 'SERVICE2'
ON CONTRACT [MainContract]

SEND ON CONVERSATION @dialog_handle
MESSAGE TYPE SendMessageType ('hello from intiator')

END CONVERSATION @dialog

In this case why do i need queue1 at all?

my assumption here is that my communication is one way and i don't need the ACK from the target.

Thanks,