# Understanding Accuracy and Consistency in Distributed Systems

DevFeed: [Understanding Accuracy and Consistency in Distributed Systems](<https://devfeed.tech/articles/cap-questions-almost-never-appear-labeled-as-cap-theorem-17952.md>)

Original publisher: [Read original article](<https://newsletter.systemdesignclassroom.com/p/consistency-vs-accuracy-distributed-systems>)

Author: Raul Junco

Published: 2026-03-07T12:53:30Z

Content type: tutorial

Language: en

Sources: [System Design Classroom](<https://devfeed.tech/sources/system-design-classroom.md>)

Topics: [distributed-systems](<https://devfeed.tech/topics/distributed-systems.md>), [Replication](<https://devfeed.tech/topics/replication.md>), [systems](<https://devfeed.tech/topics/systems.md>)

Tags: [cap-theorem](<https://devfeed.tech/tags/cap-theorem.md>), [consistency](<https://devfeed.tech/tags/consistency.md>), [distributed-systems](<https://devfeed.tech/tags/distributed-systems.md>), [replication](<https://devfeed.tech/tags/replication.md>), [systems](<https://devfeed.tech/tags/systems.md>)

## AI overview

This tutorial explains how accuracy and consistency differ in distributed systems. It defines accuracy as data reflecting the real-world value and discusses consistency, including linearizability in the CAP theorem, showing how replication delays can cause replicas to temporarily return different values.

## Source excerpt

They show up disguised as simple data questions.