MECA
Has anyone looked at https://www.manuscriptexchange.org?
We're going to be implementing it as an export (and eventually import) format for eLife.
I haven't inspected it in detail but it might provide some more confusion ideas as to a good base line data model for reviews etc.
https://docs.google.com/document/d/1Fki78pgOzZCFhFaJVCBd04ZZYZYkDThqg22suZ-q2RQ/edit