The ‘well-defined naming guidelines’ expression is confusing, since OOXML front matter said that ‘guidance’ parts of the text are meant to be informative only.
Replace ‘guidelines’ with ‘rules’ since the naming patterns are normative.
page 1, lines 9 Part 2, Section 1. Scope
ed
Proposed Disposition of DIS 29500 Comment US-0268 (Modified: 2007-11-15) Agreed; the following change will be made to Part 2, §1, page 1, lines 89: Parts have content types and are uniquely identified using the well-defined naming guidelines rules provided in this Open Packaging specification. Similar Comments: DE-0129 , DK-0073 , FR-0029 , GB-0051 , PT-0031 ,

dupe of GB-51