The CAP theorem asserts that in any distributed data store only two out of three guarantees can be provided regarding consistency, availability, and partition tolerance. But what about trust?
In commercial systems on the internet partition tolerance can never be fully guaranteed, limiting the choice to either consistency or availability. As availability has the most significant impact on revenue, the system design of distributed data stores for businesses reduces to a choice between different eventual consistency recovery strategies.
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Read the complete article: CAP Is Not the Whole Story: Introducing Trust and Blockchain