Use Case Deployment in IoT v3

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IOT Version 3 introduces the following new concepts with regard to deploying and running use cases:

  • Stream Hosts – a runtime that executes a Use Case.
  • Collections – a logical grouping of one or more Stream Hosts.
  • Use Case Publishing – Use Cases are published (deployed) to a Collection from the configuration portal.

Stream Hosts are configured to register themselves with a specific IoT Configuration Portal and Collection upon start-up. Once they have successfully connected to the portal they then await commands from the portal. The portal can deploy a use case to the Stream Host and instruct the Stream Host to start executing the use case.

Collections ease the deployment of use cases to multiple Stream Hosts. When a Use Case is published to a Collection, it will be deployed and executed on all Stream Hosts in the Collection. Similarly, when a Use Case is unpublished it is stopped on all Stream Hosts in the Collection.

Stream Host can reside on the same network as the portal or can be on different networks (as illustrated by the below diagrams).

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