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[More info](http://catalogue.fi-ware.org/enablers/complex-event-processing-cep-ibm-proactive-technology-online)
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- **Publish/Subscribe Context Broker – Orion Context Broker**
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The Orion Context Broker is an implementation of the Publish/Subscribe Context Broker GE, providing the NGSI9 and NGSI10 interfaces. Using these interfaces, clients can do several operations:
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The Orion Context Broker is an implementation of the Publish/Subscribe Context Broker GE, providing the NGSI9 and NGSI10 interfaces. Using these interfaces, clients can do several operations:
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- Register context producer applications, e.g. a temperature sensor within a room
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- Update context information, e.g. send updates of temperature
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- Being notified when changes on context information take place (e.g. the temperature has changed) or with a given frequency (e.g. get the temperature each minute)
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