---
title: Architectural Overview
---

This topic describes the architecture of the *IntelliJ Platform* from a plugin developer's point of view. It is organized in a task-based manner to answer specific questions like "what can I do with this object?", "how do I get to this object?" and so on.

The following subjects are covered:

* [General threading rules](architectural_overview/general_threading_rules.md)
* [Virtual files](architectural_overview/virtual_file.md)
* [Documents](architectural_overview/documents.md)
* [PSI files](architectural_overview/psi_files.md)
* [File view providers](architectural_overview/file_view_providers.md)
* [Psi elements](architectural_overview/psi_elements.md)