This will be the simplest understanding diagram of what MSMQ architecture is
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Sending Application[Physical]
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V
MSMQ [Layer built in topof SQL Server]
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V
Receiving Application [Physical]
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Sending Application
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|------>Writes Message [Transaction - 1]
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|------> Put written message into Queue [Transaction-2]
Sending application prepares a message and puts into Queue.
A Message can be any type of information that receiving application understand.
Receiving Application
Receives the messages and process them.
Notes:
Receiving application and Sending application were not tightly coupled,they can work
without help of other application support
How it was possible ?
Because of built-in layers between connected computers[clients].
Two types of Messages are there,one is Private Message and secondly we have Public
message
Private message :These messages only on locally on particular machine and are not
published on publically.
Public message: These messages will reside on active directory.So applications
running on different servers throughout the network can find the public queues
through active directory.