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Architecting the Industrial Internet by Carla Romano, Robert Stackowiak, Shyam Nath

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Publish and subscribe

Publish and subscribe describes a reliable method for sending or publishing data by a person or process, at predefined intervals, to parties that have indicated an interest in the topic. These parties are called subscribers. The publisher and subscriber do not necessarily know about each other. A broker is used to filter and distribute the data. Data collected at the edge might be published to a consolidation and aggregation tier.

Publish and subscribe methods enable scalability for many data sources and consumers, and there is a reliable flow of management services to the devices. Broker operations can be run in parallel, and caching and intelligent routing can be employed to improve scalability. For extremely high ...

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