.. _SimIntro

Introduction
============

The aim of the SIM :term:`Processing Function` (developped by OU-SIM) is to produce homogeneous simulated data amongst the :term:`ECSGS` in a coordinated way for integration, validation and verification of the complexe :term:`ECSGS` framework. Simulations produced by OU-SIM also serve for the End to End performance validation of the entire Euclid mission.

There is no products from OU-SIM distributed with the DR1-Foundation data release.