

.. index:: Versions
.. _Versions:

Versions
========

There are `various configurations <https://www.hugin.com/index.php/products/>`_  of the HUGIN Development Environment. Overall they can be divided into two categories: Commercial and Academic Licences. Furthermore, a popular free evaluation version with limited functionality can be downloaded from our web site and an OEM version can be achieved for deployment in production setups.

Commercial Versions
-------------------

For Commercial users, two versions of the HUGIN Development Environment are available: `HUGIN Explorer™ <https://www.hugin.com/index.php/hugin-explorerhugin-educational//>`_, and `HUGIN Developer™ <https://www.hugin.com/index.php/hugin-developerhugin-researcher/>`_. HUGIN Explorer comprises `HUGIN Graphical User Interface <../../index.html>`_ that is an interactive Java-based tool built on top of the HUGIN Java API, and thus enables you to use the facilities of the HDE for constructing, manipulating, and evaluating models that can be used in other applications. HUGIN Developer™ comprises  `HUGIN Graphical User Interface <../../index.html>`_ and one of the available `Hugin APIs <../HDE/Components.html>`_, and it is intended for developers using the HUGIN Decision Engine (HDE) as part of custom-built applications. It provides access to all functions of the Decision Engine through an API. HUGIN Explorer™ and HUGIN Developer both allow construction of Bayesian networks of any size, limited only by the amount of virtual memory available. Neither version has limitations on the number of nodes or the number of states of the nodes.

Academic Versions
-----------------

The following two versions of the HUGIN Development Environment are targeting academic users: `HUGIN Educational™ <https://www.hugin.com/index.php/hugin-explorerhugin-educational/>`_, and `HUGIN Researcher™ <https://www.hugin.com/index.php/hugin-developerhugin-researcher/>`_. HUGIN Educational™ is targeting employees or students at an academic facility who wish to learn about and utilize Bayesian network technology. It comprises `HUGIN Graphical User Interface <../../index.html>`_ that is an interactive Java-based tool built on top of the HUGIN Java API, and thus enables students and researchers to use the facilities of the HDE for constructing, manipulating, and evaluating models that can be used in other applications. HUGIN Researcher™ is targeting employees or students at an academic facility who using Bayesian network technology to build advanced applications for research purposes to be used for academic purposes. It comprises the `HUGIN Graphical User Interface <../../index.html>`_ and the `HUGIN APIs <../HDE/Components.html>`_, and it is intended for students and researchers using the HUGIN Decision Engine (HDE) as part of their academic work. It provides access to all functions of the Decision Engine through an API. HUGIN Educational™ and HUGIN Researcher™ both allow construction of Bayesian networks of any size, limited only by the amount of virtual memory available. Neither version has limitations on the number of nodes or the number of states of the nodes.

Free Evaluation Version
-----------------------

HUGIN Lite™ is a free version `free version <https://www.hugin.com/index.php/hugin-lite/>`_ of HUGIN Developer™ for people who do not trust sales literature. HUGIN Lite™ contains all the basic functionality of HUGIN Developer™, except for loading, construction, and saving of models with more than 50 states, and a restriction to 500 cases when learning. HUGIN Lite™ is intended to give an idea of the possibilities and facilities in HUGIN Developer™ and HUGIN Researcher™.

Deployment Licences
-------------------

For clients who want to incorporate HUGIN technology into products or services an `OEM agreement <https://www.hugin.com/index.php/hugin-oem/>`_ can be made allowing the client to deploy the :ref:`HUGIN APIs <Components_of_hugin_development_environment>` in production environments.


Special HUGIN API Versions
--------------------------

The HUGIN Decision Engine is highly portable. This means that versions of the HUGIN API can be produced for many types of machines and operating systems. If you have special requirements, or special machines you would like to see supported, please contact HUGIN Expert A/S at info@hugin.com. If possible, we will be happy to produce special HUGIN API versions on request. 

