The Product Group Description shows for each Product Group within a Service
a description of the channels/products that are expected to be received
for each repeat/PDU cycle. It indicates which EUMETCast footprints the
product group is nominally disseminated on. The Product's Completeness
and Timeliness threshold values are also provided which are used to
determine the indicator colour as described in the legend for each OSSI level.
In addition a link to the product's relevant User Portal entry is
provided in the Product Group Description table. The Product Group Description
table should be used as a reference against the OSSI Level 3 indicator values.