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Eventual consistency is a weak guarantee – most stronger models, like linearizability, are trivially eventually consistent. Eventually-consistent services are often classified as providing BASE semantics (basically-available, soft-state, eventual consistency), in contrast to traditional ACID (atomicity, consistency, isolation, durability) .
Formal logic and mathematical rules are examples of rigorous consistency. An example would be: if all As are Bs and all Bs are Cs, then all As are Cs. While this standard is of high value, it is limited. For example, the premises are a priori (or self-apparent), requiring another test of truth to employ this criterion. Additionally, strict ...
The general area of concurrency control provides rules, methods, design methodologies, and theories to maintain the consistency of components operating concurrently while interacting, and thus the consistency and correctness of the whole system. Introducing concurrency control into a system means applying operation constraints which typically ...
The processor consistency model (PC) is the most relaxed of the three models and relaxes both the constraints such that a read can complete before an earlier write even before it is made visible to other processors. In Example A, the result is possible only in IBM 370 because read(A) is not issued until the write(A) in that processor is completed.
Consistency (reproducibility): Consistent findings observed by different persons in different places with different samples strengthens the likelihood of an effect. Specificity : Causation is likely if there is a very specific population at a specific site and disease with no other likely explanation.
Example of direct replication and conceptual replication There are two main types of replication in statistics. First, there is a type called “exact replication” (also called "direct replication"), which involves repeating the study as closely as possible to the original to see whether the original results can be precisely reproduced. [ 3 ]
For example, a transfer of funds from one bank account to another, even involving multiple changes such as debiting one account and crediting another, is a single transaction. In 1983, [ 1 ] Andreas Reuter and Theo Härder coined the acronym ACID , building on earlier work by Jim Gray [ 2 ] who named atomicity, consistency, and durability, but ...
The consistency strength of numerous combinatorial statements can be calibrated by large cardinals. For example: the negation of Kurepa's hypothesis is equiconsistent with the existence of an inaccessible cardinal, the non-existence of special -Aronszajn trees is equiconsistent with the existence of a Mahlo cardinal,