And before there was "reactive", there were (oneway) dataflow constraints. And a lot of literature on the algorithms. I wrote a bit about the connection here:

And before there was "reactive", there were (oneway) dataflow constraints. And a lot of literature on the algorithms. I wrote a bit about the connection here: https://blog.metaobject.com/2014/03/the-siren-call-of-kvo-and-cocoa-bindings.html https://blog.metaobject.com/2014/03/the-siren-call-of-kvo-an... (It starts in a slightly different place, but gets there) Also about constraints as an architectural connector. https://dl.acm.org/doi/10.1145/2889443.2889456?cid=81316491227 https://dl.acm.org/doi/10.1145/2889443.2889456?cid=813164912...