<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1027" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi Claire<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Let me take a shot at this.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>OAIS defines <o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-GB'>Descriptive Information</span></b><span 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 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 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 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 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 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 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><a name="_MailEndCompose"><o:p> </o:p></a></p><span style='mso-bookmark:_MailEndCompose'></span><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='mso-fareast-language:EN-GB'>From:</span></b><span lang=EN-US style='mso-fareast-language:EN-GB'> MOIMS-DAI [mailto:moims-dai-bounces@mailman.ccsds.org] <b>On Behalf Of </b>Caillet Claire<br><b>Sent:</b> 04 January 2017 12:59<br><b>To:</b> MOIMS-Data Archive Ingestion <moims-dai@mailman.ccsds.org><br><b>Subject:</b> [Moims-dai] Clarifications about Descriptive Information and Package Description<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></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><span lang=EN-US>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></span></p><p class=MsoNormal><span lang=EN-US>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></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US 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">
<v:stroke joinstyle="miter" />
<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0" />
<v:f eqn="sum @0 1 0" />
<v:f eqn="sum 0 0 @1" />
<v:f eqn="prod @2 1 2" />
<v:f eqn="prod @3 21600 pixelWidth" />
<v:f eqn="prod @3 21600 pixelHeight" />
<v:f eqn="sum @0 0 1" />
<v:f eqn="prod @6 1 2" />
<v:f eqn="prod @7 21600 pixelWidth" />
<v:f eqn="sum @8 21600 0" />
<v:f eqn="prod @7 21600 pixelHeight" />
<v:f eqn="sum @10 21600 0" />
</v:formulas>
<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect" />
<o:lock v:ext="edit" aspectratio="t" />
</v:shapetype><v:shape id="Image_x0020_1" o:spid="_x0000_s1026" type="#_x0000_t75" style='position:absolute;margin-left:0;margin-top:4.05pt;width:31.5pt;height:34.1pt;z-index:251659264;visibility:visible;mso-wrap-style:square;mso-width-percent:0;mso-height-percent:0;mso-wrap-distance-left:9pt;mso-wrap-distance-top:0;mso-wrap-distance-right:9pt;mso-wrap-distance-bottom:0;mso-position-horizontal:left;mso-position-horizontal-relative:text;mso-position-vertical:absolute;mso-position-vertical-relative:text;mso-width-percent:0;mso-height-percent:0;mso-width-relative:page;mso-height-relative:page'>
<v:imagedata src="cid:image001.jpg@01D26692.49C1C620" o:title="" />
<w:wrap type="square"/>
</v:shape><![endif]--><![if !vml]><img width=42 height=45 style='width:.4375in;height:.4722in' src="cid:image003.jpg@01D26692.49C1C620" 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>