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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">CCSDS Secretariat,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Attached and also listed below, please find a resolution for retiring the
</span><i><span style="font-family:"Calibri",sans-serif">CROSS SUPPORT REFERENCE MODEL— PART 1: SPACE LINK EXTENSION SERVICES, CCSDS 910.4.<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">-Erik<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><a name="_Hlk62726246"><b><u><span style="font-family:"Calibri",sans-serif">CSS-R-2023-10-001</span></u></b></a><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif">,
<i>Resolution for Retirement of CROSS SUPPORT REFERENCE MODEL— <o:p></o:p></i></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><i><span style="font-family:"Calibri",sans-serif">PART 1: SPACE LINK EXTENSION SERVICES (CCSDS
</span></i><span style="color:black">910.4)</span></span><span style="mso-bookmark:_Hlk62726246"><i><span style="font-family:"Calibri",sans-serif">
<o:p></o:p></span></i></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><i><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></i></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif">The CSS Area,<o:p></o:p></span></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif">CONSIDERING
</span></span><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB">that due diligence has been performed regarding a potential 5-year update of
</span></span><span style="mso-bookmark:_Hlk62726246"><i><span style="font-family:"Calibri",sans-serif">CROSS SUPPORT REFERENCE MODEL— PART 1: SPACE LINK EXTENSION SERVICES (CCSDS
</span></i><span style="color:black">910.4; herein referred to as the “SLE Reference Model” or SRM);</span></span><span style="mso-bookmark:_Hlk62726246"><i><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></i></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB">and ALSO CONSIDERING that the due diligence included
surveying all the changes necessary given the recommendation’s last publication in 2005;<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB">and RECOGNIZING that there are significant differences
in today's reality versus the projections stated in the SLE Reference Model, including but not limited to<o:p></o:p></span></span></p>
<ol style="margin-top:0in" start="1" type="a">
<li class="MsoListParagraphCxSpFirst" style="color:black;margin-left:.25in;mso-add-space:auto;line-height:12.0pt;mso-list:l0 level1 lfo1;text-autospace:none">
<span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB">several SLE services are indicated that will never be created,<o:p></o:p></span></span></li><li class="MsoListParagraphCxSpLast" style="color:black;margin-left:.25in;mso-add-space:auto;line-height:12.0pt;mso-list:l0 level1 lfo1;text-autospace:none">
<span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;mso-fareast-language:EN-GB">the Forward Space Packet SLE service standard has in fact seen no real world implementation and has itself been retired;<o:p></o:p></span></span></li></ol>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB">and ALSO RECOGNIZING that the Cross Support Architecture
Description Document and Requirements documents (CCSDS 901.0-G-1 and CCSDS 901.1-M-1 respectively) in fact offer a significantly more comprehensive and more contemporary survey of cross support services than that stated in the SRM;<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span lang="EN-GB" style="font-family:"Calibri",sans-serif;color:black;mso-fareast-language:EN-GB">and TAKING INTO ACCOUNT that CCSDS is obligating itself
to maintain and ensure that the SRM and the Cross Support Architecture Documents (CCSDS 901.0 and CSSDS 901.1) are maintained for consistency offering in return no material benefit;<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif">RESOLVES to retire the SRM;
<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif">And REQUESTS that the CCSDS Secretariat initiate the procedure for classifying 910.4 as a CCSDS Silver
Book.<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:12.0pt;text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="mso-bookmark:_Hlk62726246"><span style="font-family:"Calibri",sans-serif">[End Resolution]</span></span><span style="font-family:"Calibri",sans-serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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