Would it be correct in saying that stores behave exactly (are) Eager Read Derivations as describe by Fowler? http://martinfowler.com/bliki/EagerReadDerivation.html.

I.e: they update themselves (eagerly, hence the name) based on changes from the data-access layer. They're able to choose themselves which transformations to do on the data in order for views/components to query them efficiently.