> 1) If, as suggested by Jerome McDonough and in the METS > description, complex documents were to be represented by multiple METS > objects, with an 'umbrella' object containing divs with mptrs to the > subsidiary objects, how would one get from the subsidiary object back > to the umbrella object? I do not see any kind of reverse pointer in > METS. > You're right, there's no reverse pointer, and this is doubtless one of the reasons why Harvard has asked that we reconsider the structure of the <mptr> element. The previous xlink based syntax for <mptr> in MOA2 allowed you to specify whether you were linking to something that was a parent or child object of the current object; METS is missing that. I'll be adding that to the list of issues to address in our meeting in DC.