******
Design
******

The *EDocument UNECE Module* extends the following concepts:

.. _model-product.uom:

Unit of Measure
===============

The *Unit of Measures* gains a new property to store the `UNECE recommendation
No. 20 code
<https://tfig.unece.org/instruments/recommendations-and-standards/unece-and-uncefact-recommendations/recommendation-no-20>`_.

.. seealso::

   The `Unit of Measure <product:model-product.uom>` concept is introduced by
   the :doc:`Product Module <product:index>`.

.. _concept-product:

Product
=======

The *Product* gains new properties to store the `UNECE code 5189
<https://unece.org/fileadmin/DAM/trade/untdid/d16b/tred/tred5189.htm>`_ and the
`UNECE code 7161
<https://unece.org/fileadmin/DAM/trade/untdid/i98a/uncl/uncl7161.htm>`_

.. seealso::

   The `Product <product:concept-product>` concept is introduced by the
   :doc:`Product Module <product:index>`.

.. _model-account.tax:

Tax
===

The *Tax* gains new properties to store the `UNECE code 5153
<https://unece.org/fileadmin/DAM/trade/untdid/d16b/tred/tred5153.htm>`_ and the
`UNECE category code 5305
<https://unece.org/fileadmin/DAM/trade/untdid/d16b/tred/tred5305.htm>`_

.. seealso::

   The `Tax <account:model-account.tax>` concept is introduced by the
   :doc:`Account Module <account:index>`.