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

# Core concepts

> Common terms used across Darpan.

Six terms appear on almost every Darpan screen. Learn them here — the rest of the docs assume you know them.

## Schema

A schema describes the structure Darpan expects from source data. It gives a reconciliation run stable field names and types to use during parsing, mapping, and comparison.

## Connection

A connection is saved setup for an external system or provider. Reconciliation runs use connection records for workflows such as SFTP file access, NetSuite calls, and AI provider setup.

## Reconciliation run

A reconciliation run is one execution of a reconciliation. It records the selected setup, source inputs, processing outcome, and generated output.

## Result

A result is the reviewable output from a run. Results can include matched rows, mismatches, generated files, and links back to the run history.

## RuleSet

A RuleSet is the rules-backed model for configurable reconciliation behavior, including rule compilation, decisioning, and rules-driven classification.

## Active company or tenant

Darpan scopes user activity through an active company or tenant context. When multi-company access is enabled, reads and writes use the active context.