Required product fields

hello,
Can somebody help me please and give tip where I find the infos to the article duty fields? So which fields an article should have anyway?

Later the duty fields of OXIDE with the duty fields of UBL must form a cut amount for which I must create an ontology.
do I properly think? belong to it, e.g., oxarticles, oxattribute, oxdelivery…?
if I properly think what belongs then on top of that??
Many thanks in advance