Update Accuracy estimates. These may be propagated along update paths, when necessary and possible through extra parameters of Filter functions that both compute transforms and their quality. For all Connected data consumers of the new estimate, if any action must be taken to propagate values to them, do so. Every set of connections must reflect Compatibility constraints among filters and representations. However, compatibility constraints operate at the level of types.
Connections are at the level of individual components.
Each host must deal with the particular data sources and consumers required to fulfill its role in the system. Each impacts different aspects of Update mechanics, and so must be considered in tandem with update protocols. Feasible choices depend upon Flow and Configuration strategies. When all the right data are obtained, it proceeds with an update. Similarly, there is no need to explicitly represent consumer connections if, upon update, the host either broadcasts data to all possible consumers or places state vectors in pre-established storage locations for use by consumers.