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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I promised that I would comment on Murata-san’s latest rewrite of the text related to media/content types. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I chose to ignore my earlier comments and approach it again as a new reader. So there may be some repetition of points I made before that Murata-san argued against. Most of the changes look fine.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>All page numbers relate to OPC WD1 DSig-JH2 and C2MRev.docx as I see it but automated changes relating to renumbering in Clause 4 resulted in added pages in my copy.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>General issues: <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>1. Inconsistent capitalization for Media Types, Media Types Stream, and Media Types Stream Markup. This is a problem throughout. The question is what capitalization choices SHOULD be made given that the name of the stream is [/[Content_Types].xml]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Some clause/subclause headings are not capitalized where they should be. I find the use of "Media Types stream" in the narrative slightly confusing given that it does not match the stream name. I might prefer "media types stream" except in headings. I suggest the group as a whole discuss this issue in London.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2. How early should we indicate that the "media types stream" is called [/[Content_Types].xml]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Currently it is not explicitly stated as text until a table in 9.3.1 and in the narrative in 9.3.7. However, "ContentType" shows up in diagrams 9.2.3.3. I strongly believe that the stream's name should be mentioned informatively earlier than 9.3. My preference would be to add a note to the definition of "media type stream" in Clause 4. Alternatively (or additionally), add a mention in 9.2.3.2.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>3. I think we have to use different phrases for the relationship of media types to 2046 and 7231. The current text uses "as defined in RFC xxxx" for both. Careful readers will see that as an inconsistency. My suggestion is to use "using the syntax provided in RFC 7231 3.1.1.1". Note that this clause in RFC 7231 refers to RFC 2046, which is useful. Or we might refer to Appendix D which also connects OWS (optional white space as included in the BNF in 3.1.1.1) to its definition in RFC 7230.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>4. I suspect that Murata-san's changes do not take into account what I believe to be an automated relationship between requirements in the text and those in Annex G. I would like to emphasize that the separate list of requirements is likely to be very useful to folks doing validation of OPC packages, for example in the workflow for ingest into a preservation repository.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Detailed issues:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Clause 2. Conformance (p. 2)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> I suggest we pick a different conformance example (used to show how requirements are indicated in the text) to raising the issue about the stream that is called [/[Content_Types].xml]</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> but now described by the phrase "media types stream." Perhaps use one of the XML Usage requirements in 8.2.5. Several of these requirements seem self-explanatory.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Clause 3. Normative References (p. 3)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Just noting that RFC 2616 is still referenced in 8.2.3. However, I believe that is in a section that Murata-san hopes to delete.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Clause 4. Terms and Definitions (p. 5)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> I see no reason for upper case in the term here. Change "specially" to "special"<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>My preference would be to add a note to indicate that the stream is called [/[Content_Types].xml]</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'></span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> when using a ZIP-based package as described in clause 9.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Clause 8. Package Model <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>8.2.3 (p.17)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I suggest a slight rewording of Murata-san's added text. This also needs to be assigned a requirement number.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>"This specification uses MIME media types as defined in RFC 2046 to identify the type of content stored in parts. Each part shall have a media type (e.g., application/xml) which may have a set of parameters."<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Would it be more appropriate to use as an example a media type/subtype combination that appears in RFC 2046?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>With all the changes, I am unable to figure out exactly which paragraphs Murata-san wishes to delete. Looking at in my copy of Word it looks as though the proposal includes deleting what seem to be significant requirements, e.g., requirement M1.15. I see no problem in deleting the syntax presentation if others agree that it is covered adequately in cited RFCs. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>However, since RFC 2046 does not provide full BNF for the media type and I believe the syntax for a media type should be specified in Clause 8 and not only in Clause 9, I would like to see an RFC that does supply the BNF cited here too. M1.13 (here, but possibly in the proposed deletion) is the syntax requirement for mediatypes. Murata-san did modify the text for M1.13 in Annex G to refer to RFC 7231. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I'll leave it to the BNF and regex experts to thrash out what really needs to be in this Clause 8 section. RFC 7231 doesn't get mentioned until Clause 9.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>8.2.5 (p. 18)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>There might usefully be a pointer to Annex C for the schemas for the "XML Content" this subclause relates to, perhaps in the [Note] in the first para.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>8.3.5 (p. 23)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>[M7.3] doesn't seem to exist any more. [not to do with media/content type -- just noticed in passing, since an apparent reference to a requirement rather than a subclause seemed odd.]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>8.5.4 third para (p. 29) <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>may have missing space after mediatype<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Clause 9. Physical package.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Note: If M1.13 is not in Clause 8, an equivalent requirement certainly needs to be added to the main text in clause 9 and refer to RFC 7231.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>9.2.3.2 (p. 34)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> I suggest rewording <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>"For all other physical package formats, the package implementer should include an XML stream, known as the Media Types stream, in the package. [S2.2] The Media Types stream shall not be mapped to a part by the package implementer. [M2.1] This stream is therefore not URI-addressable. However, it can be interleaved in the physical package using the same mechanisms used for interleaving parts."<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> to<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>"For all other physical package formats, the package implementer should include an XML stream, described in this specification as the Media Types stream, in the package. [S2.2] The Media Types stream shall not be mapped to a part by the package implementer. [M2.1] This stream is therefore not URI-addressable. However, it can be interleaved in the physical package using the same mechanisms used for interleaving parts."<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If people are against adding a note to the definition of "media types stream", could we insert an example here that gives the /[Content_Types].xml name as an example for a stream in a ZIP Archive as described in Clause 9.3.? That would partly explain the ContentType attributes appearing in the tables below. Otherwise perhaps we need a reference to Annex C for the schema for the Media Types Stream.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>9.2.3.3 (starts at p. 35)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Suggest changing each use of "as defined in RFC 7231" to "using the syntax provided in RFC 7231 3.1.1.1". See general issue 3.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>9.3.7 (p.45)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Murata-san is proposing deletion of two paragraphs, one of which is requirement M3.10. Perhaps need to apply number M3.10 to the new paragraph above.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I’ve attached a text file with (almost) the same content. A just fixed a character set problem for [ and ] -- presumably generated when moving a text file from the Mac.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I hope this will be useful at the meeting in London. I am going to be sailing for a month starting this weekend and will not be checking my Library of Congress e-mail while away.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Have a good time in London.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Caroline<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Caroline Arms<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Library of Congress Contractor<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Co-compiler of Sustainability of Digital Formats resource http://www.digitalpreservation.gov/formats/<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>** Views expressed are personal and not necessarily those of the institution **<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> eb2mmrt@gmail.com [mailto:eb2mmrt@gmail.com] <b>On Behalf Of </b>MURATA Makoto<br><b>Sent:</b> Sunday, May 10, 2015 5:23 AM<br><b>To:</b> SC34<br><b>Subject:</b> Revised text for OPC<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Folks,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>In the draft minutes, I was tasked to "make a further update to the<o:p></o:p></p></div><div><p class=MsoNormal>draft text to incorporate references to RFC 2045 and/or RFC 2046 for<o:p></o:p></p></div><div><p class=MsoNormal>the concepts of media type and subtype and to RFC 7231 (replacing the<o:p></o:p></p></div><div><p class=MsoNormal>reference to RFC 2616) for the syntactic definition (ABNF) in clause 8<o:p></o:p></p></div><div><p class=MsoNormal>Package Model." I tried to do the task.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Later, Caroline sent some useful comments from a more careful look at<o:p></o:p></p></div><div><p class=MsoNormal>the latest draft. I accepted most of her comments and even proposed<o:p></o:p></p></div><div><p class=MsoNormal>text (thank you, Caroline!). My disposition is shown in an attached <o:p></o:p></p></div><div><p class=MsoNormal>document ("MediaTypeCheck...").<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Please find my rewrite. Although I already sent a rewrite of the<o:p></o:p></p></div><div><p class=MsoNormal>Content Type regular expression (see the threead "Rewriting the regexp<o:p></o:p></p></div><div><p class=MsoNormal>for @ContentType in opc-contentTypes.xsd"), I have not incorporated <o:p></o:p></p></div><div><p class=MsoNormal>my rewrite yet.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Regards,<o:p></o:p></p></div><div><p class=MsoNormal>Makoto<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>