Bacn refers to any email that is not spam or unsolicited but that the recipient/reader doesn’t have time or is currently unavailable to read. Bacn is often subscribed/opt-in email that interests the user but remains unread in the inbox for an undefined period time. Bacn is pronounced as "bacon" and is sometimes also spelled that way.
BASE may be explained in contrast to another design philosophy - Atomicity, Consistency, Isolation, Durability (ACID). The ACID model promotes consistency over availability, whereas BASE promotes availability over consistency.
Experts have noted that BASE requires a level of "failure," or lack of consistency, that makes a data operation run less effectively without overburdening users. An example is when a designer relaxes the consistency of a financial transactional database by allowing for lag time between a transaction and account updates. Allowing less constantly updated data gives developers the freedom to build other efficiencies into the overall system. In other words, elements like consistency and availability often are viewed as resource competitors, where adjusting one can impact another. In BASE, engineers embrace the idea that data has the flexibility to be "eventually" updated, resolved or made consistent, rather than instantly resolved.
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