was debating with a photography curator friend this issue and we couldn't find a definite answer. is there is or was there a difference in using these two terms - group-photography and group-portrait. are there other terms that relate to making a photograph of a group posed together? is there a standard for using these terms? is there an acceptable/respectable source to read about terminology of photography genres? (i don't mean these websites with some terminology made mainly to sell adds or random incomplete wiki-pages).