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Overview
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JUICE - JUpiter ICy moons Explorer - is the first large-class mission in ESA's
Cosmic Vision 2015-2025 programme. Planned for launch in April 2023 and arrival
at Jupiter in July 2031, it will spend at least three years making detailed
observations of the giant gaseous planet Jupiter and three of its largest moons,
Ganymede, Callisto, and Europa.

In order to assist the implementation of the Science Activity Plan under the
governance of the Science Working Team and the Project Scientist the Science
Operations Center (SOC) uses a number of tools.

The Operations Simulation & Validation Engine (OSVE) is composed by 
a **OSVE Python Wrapper** and a **OSVE C++ Library**, also called
OSVE core.

This core library is a multiplatform library in charge of preparing the
simulation environment, orchestrating the simulation and extracting the required outputs.
OSVE's core includes the Experiment Planning System (EPS) and the Attitude
Generator Module (AGM) C/C++ software applications developed by TEC (ESTEC)
and PSS (ESAC) that have been used to implement the science planning and conduct
in-flight science operations for ESA's Venus Express, Mars Express, Rosetta,
Solar Orbiter, BepiColombo, JUICE, and EnVision missions.

The Python package in the other hand is just a wrapper of this C++ library 
and it's responsible of providing a handy object oriented access to the library's
methods from Python scripting.

The OSVE architecture is provided by the figure below

.. figure:: images/osve_architecture.png
   :align: center
   :scale: 25%
   :alt: OSVE architecture.

   OSVE architecture.