There are over 20 places in ODF 1.2 CD05 Part 1 where the term "IRI" is used without reference or explanation. These are often in the same statement where URI/URL are used and it is not clear whether these are being assumed to be interchangeable or different.
These mentions of IRI are too casual. We should perhaps establish that we assume all provisions for URI references in Part 1 are subject to IRI encoding and choose to use IRI consistently. We might need to be careful that we don't overstep existing provision on URIs used as part of attributes defined by other specifications, such as xhtml:href and xlink:href, however. We may also need to say more about URI references when they use XML Schema Datatype anyURI.
Whatever we do, it is a defect to continue to use IRI casually and with neither definition nor reference to an authoritative source.
This is related to the similar situation in ODF 1.2 CD05 Part 3, addressed by issue
and any resolution in part 1 should be consistent.
There may also be need for IRI clarification, and clarification around the permissable use of relative URIs in OpenFormula when an OpenFormula expression employs a URI in one of its forms for a reference.