Message Queue vs Message Bus — what are the differences?
Message Queue vs Message Bus — what are the differences?
Message Bus
A Message Bus is a messaging infrastructure to allow different systems to communicate through a shared set of interfaces(message bus).
Source: EIP
Message Queue
The basic idea of a message queue is a simple one:
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Two (or more) processes can exchange information via access to a common system message queue.
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The sending process places via some (OS) message-passing module a message onto a queue which can be read by another process
Source: Dave Marshall
Difference
Message Queue contains FIFO(first in first out) rule whereas in Message Bus does not.
Conclusion
Both LOOK like doing same kind of work - passing messages between two Applications or Modules or Interfaces or Systems or Processes, except small difference of FIFO