# MongoDB Internals This document aims to provide a high-level specification for the MongoDB's infrastructure to support client/server interaction and process globals. Examples for such components are `ServiceContext` and `OperationContext`. This is a work in progress and more sections will be added gradually. ## Server-Internal Baton Pattern For details on the server-internal *Baton* pattern, see [this document][baton]. [baton]: ../../../docs/baton.md