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

# Matchmaking concepts

> SmartMatch matchmaking concepts for XBOX, including how players are grouped, target session initialization, and Quality of Service checks between peers.

This section describes how SmartMatch matchmaking groups players based on their information and the matchmaking request for the players who want to play together.

## In this section

[Using SmartMatch matchmaking](/services/xbox-services/multiplayer/matchmaking/concepts/live-matchmaking-how-tos)
Describes how to use SmartMatch to match players in a multiplayer game.

[Target session initialization and QoS](/services/xbox-services/multiplayer/matchmaking/concepts/live-matchmaking-target-session)
Describes how a title confirms that enough players have joined and can connect when they're matched into a target session.


## Related topics

- [Concepts](/services/xbox-services/multiplayer/matchmaking/concepts/index.md)
- [XBOX services for matchmaking, invites, chat, and networking](/services/xbox-services/multiplayer/overviews/live-multiplayer-nav.md)
- [Matchmaking](/services/xbox-services/multiplayer/matchmaking/index.md)
- [Multiplayer concepts overview](/services/xbox-services/multiplayer/concepts/live-multiplayer-concepts.md)
- [Matchmaking quickstart](/services/playfab/multiplayer/matchmaking/quickstart.md)