---
title: System Overview
description: "The ODDC Server has two main public operational components: 1. API — External clients use /api/integrations/v1/... with HTTP Basic or Windows authentication. 2. Web application — provides project, batch, review, status, log, license, and user-management user interface. Only one server…"
url: "https://activerecord.com/docs/administration/system-overview/"
updated: "2026-09-21"
category: "Administration - Oculens DDC Server (ODDC Server) 5.1"
---

# System Overview

The ODDC Server has two main public operational components:

1. API — External clients use /api/integrations/v1/... with HTTP Basic or Windows authentication.

2. Web application — provides project, batch, review, status, log, license, and user-management user interface.

Only one server process may run on a machine. A named mutex prevents concurrent instances.

Export jobs are also serialized so that only one export operation runs at a time, regardless of output format.