Eclipse Zenoh-Flow aims at simplifying and structuring (i) the declaration, (ii) the deployment and (iii) the writing of complex and, potentially, safety-critical applications that can span from the Cloud to the Microcontroller.
To these ends, Eclipse Zenoh-Flow leverages the data flow programming model — where applications are viewed as a directed graph of computing units, and Eclipse Zenoh — an Edge-native, data-centric, location transparent, communication middleware. This makes for a powerful combination as Zenoh offers flexibility and extensibility while data flow programming structures computations. The main benefit of this approach is that this allows us to separate the applications from the underlying infrastructure: data are published and subscribed to (automatically with Zenoh-Flow) without the need to know where they are actually located.
Eclipse Zenoh-Flow further separates the business logic contained within each computing unit from the constraints of the overall application. An application is described in a descriptor file that groups together the different blocks that compose it as well as (i) how these blocks are connected, (ii) how they should be deployed on the infrastructure and (iii) possible execution constraints (e.g. time requirements or execution order).
As Eclipse Zenoh-Flow is also targeting safety-critical applications, it leverages the Rust programming language for its core. It also offers bindings in other languages to facilitate integration with existing software.
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