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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoPlainText><span lang=EN-US>Meeting: 10:00 Tuesday (Washington DC time), 1500 UK time, 1600 Paris time. <o:p></o:p></span></p><p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p><p class=MsoPlainText><span lang=EN-US>*Don't have Skype yet? Download it before you join </span><a href="https://www.skype.com"><span lang=EN-US>https://www.skype.com</span></a><span lang=EN-US><o:p></o:p></span></p><p class=MsoPlainText><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:16.0pt'>Draft agenda:<o:p></o:p></span></b></p><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal><b>NOTE that Steve has given his apologies for this meeting so will not present anything for item (2)<o:p></o:p></b></p><p>Review of agenda <o:p></o:p></p><ol start=1 type=1><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0cm;mso-list:l0 level1 lfo2'>Report on CCSDS/ISO <o:p></o:p></li><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0cm;mso-list:l0 level1 lfo2'>Work on OAIS-IF design, prototyping and book – Steve will provide an update <o:p></o:p></li><ol style='margin-top:0cm' start=1 type=a><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level2 lfo2'>See discussion below about some ideas for usability<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level2 lfo2'><span lang=EN-US>The latest version of the draft GB <a href="https://www.dropbox.com/s/efspmhhrxvnhi0o/OAIS-IF%20Rationale%20Scenarios%20and%20Requirements-20211021.docx?dl=0">https://www.dropbox.com/s/efspmhhrxvnhi0o/OAIS-IF%20Rationale%20Scenarios%20and%20Requirements-20211021.docx?dl=0</a>    </span><o:p></o:p></li></ol></ol><p class=MsoListParagraph style='margin-left:72.0pt'><span style='mso-fareast-language:EN-US'>I’ve updated the proposed interfaces and associated javadocs for thee OAIS-IF generic to generic communications. They can be seen at <a href="http://www.oais.info/oais-if/javadocs/info/oais/interfaces/oaisif/package-summary.html">http://www.oais.info/oais-if/javadocs/info/oais/interfaces/oaisif/package-summary.html</a>.<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:72.0pt'><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:72.0pt'><span style='mso-fareast-language:EN-US'>There are associated changes to the OAIS programming interfaces  <a href="http://www.oais.info/oais-if/javadocs/info/oais/interfaces/infomodel/package-summary.html">http://www.oais.info/oais-if/javadocs/info/oais/interfaces/infomodel/package-summary.html</a> to add functionality which is strongly implied in OAIS Ref Model, particularly about the grouping of RepInfo.<o:p></o:p></span></p><p class=MsoListParagraph style='margin-left:72.0pt'><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoListParagraph style='margin-left:72.0pt'><span style='mso-fareast-language:EN-US'>By the way, it you click on the diagram in javadocs you will get the full size diagram which is easier to read.</span>Interactions – from Steve - <a href="https://www.dropbox.com/s/dnftuks5nvixdl0/Interactions_210608.jpg?dl=0">https://www.dropbox.com/s/dnftuks5nvixdl0/Interactions_210608.jpg?dl=0</a><o:p></o:p></p><ol style='margin-top:0cm' start=2 type=1><ol style='margin-top:0cm' start=3 type=a><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level2 lfo2'>WHITE BOOK FROM Steve - <a href="https://www.dropbox.com/s/n3akm9tpxt7kz58/02_White_Book_Recommended_Standard_OAIS-IF_Draft_191216%20v5.3%2006_ComparedCombined_04_05_220215.pdf?dl=0">https://www.dropbox.com/s/n3akm9tpxt7kz58/02_White_Book_Recommended_Standard_OAIS-IF_Draft_191216%20v5.3%2006_ComparedCombined_04_05_220215.pdf?dl=0</a><o:p></o:p></li><li class=MsoListParagraph style='margin-left:0cm;mso-list:l0 level2 lfo2'>Steve may sent out updated document/diagram<o:p></o:p></li></ol></ol><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><o:p> </o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Ideas for usability:<o:p></o:p></p><h2 style='margin-left:0cm;text-indent:0cm;mso-list:l2 level2 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1.1<span style='font:7.0pt "Times New Roman"'>       </span></span><![endif]>Negotiation for Usability<o:p></o:p></h2><p class=MsoNormal>One of the key capabilities which an OAIS should be able to provide is Representation Information to accompany the Data Object to make an Information Object which can be understood by its Designated Community, however the OAIS may have more Representation Information, perhaps kept in anticipation of changes in Knowledge Bases. A non-OAIS archive may have some RepInfo so here we focus on OAIS archives but remember that the archive (whether OAIS or not) may return “null” if it cannot supply what is needed, and this may mean that the Data Object cannot be made to be usable by the requestor.<o:p></o:p></p><p class=MsoNormal>For those outside the Designated Community the OAIS can get Representation Information which may be enough for the Information to be enough. Alternatively, it may be necessary to Transform the Data Object in order for the Information to be usable by someone in this other group of users.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><h3 style='mso-list:l2 level3 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1.1.1<span style='font:7.0pt "Times New Roman"'>      </span></span><![endif]>Getting enough RepInfo<o:p></o:p></h3><p class=MsoNormal>Thinking in general about the one requesting information getting enough RepInfo one can think of a number of steps:<o:p></o:p></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level1 lfo3'>Ask if it already has enough RepInfo e.g. checkUsability which would return <o:p></o:p></li><ol style='margin-top:0cm' start=1 type=a><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level2 lfo3'>“true” - which means that there is enough RepInfo so nothing more is needed<o:p></o:p></li><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level2 lfo3'>“false” – which means that either more RepInfo [SEE (2)]  OR a Transformation is needed [SEE (3)]<o:p></o:p></li></ol><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level1 lfo3'>Options for getting more RepInfo:<o:p></o:p></li><ol style='margin-top:0cm' start=1 type=a><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level2 lfo3'>Get everything that the archive has – e.g. the whole RepInfo Network (RIN), at least as a network of pointers BUT<o:p></o:p></li></ol></ol><p class=MsoNormal style='mso-margin-top-alt:3.0pt;margin-right:0cm;margin-bottom:0cm;margin-left:108.0pt;margin-bottom:.0001pt;text-align:justify;text-indent:-108.0pt;mso-text-indent-alt:-9.0pt;mso-list:l1 level3 lfo3'><![if !supportLists]><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>                                                               </span>i.<span style='font:7.0pt "Times New Roman"'>      </span></span><![endif]>If only using pointers then somehow the requestor must be able to recognise the identifiers, which might be OK if they use the same registry<o:p></o:p></p><ol style='margin-top:0cm' start=2 type=1><ol style='margin-top:0cm' start=1 type=a><ol style='margin-top:0cm' start=1 type=i><ol style='margin-top:0cm' start=1 type=1><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level4 lfo3'>NOTE: if the Data Object is a FITS file then if the RepInfo is a PDF of the FITS standard then that would be OK because one would see that the RepInfo needed is a PDF reader, which I have.<o:p></o:p></li><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level4 lfo3'>if the RepInfo is a piece of DRB then what the requestor needs to recognise is NOT that specific example of DRB but rather the requestor would be looking for the DRB processor which is used to extract information from the combination of the DRB file and the Data Object.<o:p></o:p></li></ol></ol><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level2 lfo3'>As an alternative to getting the full RIN then one could get the nearest pieces of RepInfo i.e. the Structure, Semantic and Other RepInfo for the Data Object (which might itself be the DO for some RepInfo).<o:p></o:p></li><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level2 lfo3'>If nothing will work then see (3)<o:p></o:p></li></ol><li class=MsoNormal style='margin-top:3.0pt;text-align:justify;mso-list:l1 level1 lfo3'>Negotiate a Transformation by sending a list of acceptable formats for the DO – but would need more details such as how Semantics are dealt with. The archive would need to see if any of these formats are acceptable e.g. in terms of Transformational Information Properties.<o:p></o:p></li></ol><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>..David<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>