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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='color:#1F497D'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I mostly agree with David’s response, except I would say that Package Descriptions are derived from, associated with and describe (rather than are part of) AIPs. So in general if you know what you are doing you should be able to generate any particular Package Description from the AIP and probably some additional location/storage info.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>As David said Package Descriptions are a type of or component of Descriptive Information. So they are very closely related. The distinction is just that Descriptive Information could have other information that is not a Package Description. Perhaps one thing that might be valuable to have in Descriptive Information is a general description of how Package Descriptions are generated from AIPs.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Peace and Joy,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>-JOhn<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='color:#1F497D'><o:p> </o:p></span></a></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> MOIMS-DAI [mailto:moims-dai-bounces@mailman.ccsds.org] <b>On Behalf Of </b>David Giaretta<br><b>Sent:</b> Wednesday, January 4, 2017 8:56 AM<br><b>To:</b> 'MOIMS-Data Archive Ingestion' <moims-dai@mailman.ccsds.org><br><b>Subject:</b> Re: [Moims-dai] Clarifications about Descriptive Information and Package Description<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB>Hi Claire<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>Let me take a shot at this.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB>OAIS defines <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><b><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>Descriptive Information</span></b><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>: The set of information, consisting primarily of Package Descriptions, which is provided to Data Management to support the finding, ordering, and retrieving of OAIS information holdings by Consumers.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>So the two are related. However the definitions allow Descriptive Information to have more than just the Package Descriptions in order to support for example the retrieving the information. But it is important that the Descriptive Information is primarily Package Descriptions because the Package Descriptions are part of the AIP and so, for example, if the AIPs are transferred to another repository then the those Package Descriptions can be collected together and provide most of the info needed to support “finding, ordering, and retrieving”. The retrieval part must rely on information about, for example, which disk or tape the info is on, and that would of course not be part of the AIP but the repository would certainly know it.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>Does that help? If it does then maybe we need something like this in the update.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-GB style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>.>David<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='mso-fareast-language:EN-GB'>From:</span></b><span style='mso-fareast-language:EN-GB'> MOIMS-DAI [<a href="mailto:moims-dai-bounces@mailman.ccsds.org">mailto:moims-dai-bounces@mailman.ccsds.org</a>] <b>On Behalf Of </b>Caillet Claire<br><b>Sent:</b> 04 January 2017 12:59<br><b>To:</b> MOIMS-Data Archive Ingestion <<a href="mailto:moims-dai@mailman.ccsds.org">moims-dai@mailman.ccsds.org</a>><br><b>Subject:</b> [Moims-dai] Clarifications about Descriptive Information and Package Description<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=FR>Dear all,<o:p></o:p></span></p><p class=MsoNormal><span lang=FR><o:p> </o:p></span></p><p class=MsoNormal>I just had a discussion about the OAIS with a colleague who is preparing a course for French students and we exchanged for a long time about the difference between the Descriptive Information and the Package Description. We came to the point that we don’t see the difference anymore. In the figure 2-3 we talk about “Descriptive Information about the Package” but the Figure 4-13 we have the “Package Description” for things that seem to be the same. <o:p></o:p></p><p class=MsoNormal>Can someone explain me the difference ? And do you think we should include some clarifications in the OAIS (using the 5-years review) ?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='color:black;mso-fareast-language:FR'>Regards.<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=FR style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>_______________________________________________________________________</span><span lang=FR style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
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</v:shape><![endif]--><![if !vml]><img width=42 height=46 src="cid:image002.jpg@01D267B1.07630D50" align=left hspace=12 v:shapes="Image_x0020_1"><![endif]><b><span lang=FR style='font-size:10.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR'>Claire Caillet<o:p></o:p></span></b></p><p class=MsoNormal><b><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR'>CNES</span></b><span lang=FR style='font-size:8.0pt;mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>DNO/ISA/VIP</span><span lang=FR style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'> </span><span lang=FR style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>Centre Spatial de Toulouse</span><span lang=FR style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>Tel.: +33 5 61 28 14 38<o:p></o:p></span></p><p class=MsoNormal><span lang=IT style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>e-mail : <a href="mailto:claire.caillet@cnes.fr">claire.caillet@cnes.fr</a><o:p></o:p></span></p><p class=MsoNormal><span lang=IT style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'> </span><span lang=IT style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>18 Avenue Edouard Belin </span><span lang=FR style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>31 401 Toulouse Cedex 4<o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:8.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>FRANCE<o:p></o:p></span></p><p class=MsoNormal><span lang=FR style='font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:FR'>_______________________________________________________________________</span><span lang=FR style='mso-fareast-language:FR'><o:p></o:p></span></p><p class=MsoNormal><span lang=FR><o:p> </o:p></span></p></div></body></html>