GitHub user mtaylor-os added a comment to the discussion: Python Support for 
Adapters, Processors, & Sinks

Dang, I was really hoping to decouple our SCADA system from StreamPipes by 
having StreamPipes be an OPC-UA server.  If StreamPipes can only serve as an 
OPC-UA client then new tags must be made on the SCADA system, then StreamPipes 
has to be updated to write to those tags.

The idea behind all this is to use our SCADA system to continue collecting some 
200k-300k tags as it has always done. Then StreamPipes could pull a few of 
those tags, manipulate* them in some way, and provide the calculated results as 
a new set of tags. Our SCADA system could then read those new tags and 
historize them, alarm on them, send emails on them, all the things our controls 
engineers already do with the SCADA system.

* = calculate moving averages over days, calculate range/mean/mode/median/stdev 
statistics, perform linear regression to estimate when an event will happen in 
the future, etc.

GitHub link: 
https://github.com/apache/streampipes/discussions/2824#discussioncomment-9347166

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