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From the MQTT page, quality of service (QoS) is described as, Quality of service refers to traffic prioritization and resource reservation control mechanisms rather than the achieved service quality. Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level ...
Message brokers are generally based on one of two fundamental architectures: hub-and-spoke and message bus. In the first, a central server acts as the mechanism that provides integration services, whereas with the latter, the message broker is a communication backbone or distributed service that acts on the bus . [ 3 ]
RabbitMQ is an open-source message-broker software (sometimes called message-oriented middleware) that originally implemented the Advanced Message Queuing Protocol (AMQP) and has since been extended with a plug-in architecture to support Streaming Text Oriented Messaging Protocol (STOMP), MQ Telemetry Transport (MQTT), and other protocols.
Oracle Enterprise Service Bus [a] Oracle Corporation 12.1.3.0.0 2014-06 Varies [7] No Proprietary: PEtALS ESB: OW2 Consortium: 3.1.3 2011-07 Free / Commercial support available Yes GNU LGPL: Sonic ESB: Progress Software: 8.x 2011 No Proprietary: Enterprise Service Bus SAP NetWeaver Process Integration (short SAP PI) SAP AG: 7.5 2011 Varies [b ...
AMQP is a binary application layer protocol, designed to efficiently support a wide variety of messaging applications and communication patterns. It provides flow controlled, [3] message-oriented communication with message-delivery guarantees such as at-most-once (where each message is delivered once or never), at-least-once (where each message is certain to be delivered, but may do so ...
An enterprise service bus (ESB) implements a communication system between mutually interacting software applications in a service-oriented architecture (SOA). It represents a software architecture for distributed computing , and is a special variant of the more general client-server model, wherein any application may behave as server or client.
Examples of commercial implementations of this kind of message queuing software (also known as message-oriented middleware) include IBM MQ (formerly MQ Series) and Oracle Advanced Queuing (AQ). There is a Java standard called Java Message Service, which has several proprietary and free software implementations.
The Simple Bus Architecture [1] (SBA) is a form of computer architecture. It is made up software tools and intellectual property cores ( IP core ) interconnected by buses using simple and clear rules, that allow the implementation of an embedded system ( SoC ).