---
title: "RAG glossary"
slug: "rag-glossary"
updated: 2026-09-17T09:33:50Z
published: 2026-09-17T09:33:50Z
canonical: "guide.ncloud-docs.com/rag-glossary"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# RAG glossary

Available in VPC

To use RAG service, you must familiarize yourself with a few key terms. The glossary and its description are as follows:

### Object Storage buckets

A space in storage that is allocated and holds a value or is referenced by an identifier (such as a variable, data structure, function, or method). In the Object Storage service, a bucket is the top-level directory that groups related objects together.

### Index

The process of training data to build an AI-based search service in the RAG service

### Chunking method

A method of splitting data into segments

### Overlap

Refers to the overlap ratio between individual segments in the search results of chunked data

### Clova Studio

A hyperscale AI development tool provided by NAVER Cloud Platform

### API Key

An API key issued within the RAG service to validate service access; separate from the NAVER Cloud Platform-issued API key used for integrating other products

### Prompt

An instruction-like prompt designed to elicit a response from an AI model

### Parameter configuration

Token-related configuration values used in the RAG service

              Note

              

For more information on terms, see [glossary](https://www.ncloud.com/guideCenter/glossary) on the NAVER Cloud Platform portal.