<font size=2 face="Arial">Dear all,</font>
<br>
<br><font size=2 face="Arial">during the last CCSDS meeting, NASA stated
that they would like to make GovSat (the NASA tailoring of XTCE) a CCSDS
standard (not yet clear what book colour). They asked if we (ESA, Europe
or both) would like to do the same with XTCE-CC and I took an action on
this. This email aims at answering to this action.</font>
<br>
<br><font size=2 color=blue face="Arial">Action 141111-09
MM to check if the EGC-CC ICD based on XTCE could
be published as it may be done for NASA/GovSat (i.e. directly in SANA).
Due 31Dec14.</font>
<br>
<br><font size=2 face="Arial"><b>Background</b></font>
<br><font size=2 face="Arial">The ESA strategy on XTCE is to develop a
tailoring of XTCE as the exchange format for the TM/TC information of the
EGS-CC, the next generation European monitoring and control infrastructure.
The scope of the EGS-CC XTCE exchange format, XTCE-CC, has been restricted
to the XTCE native scope (TM/TC general concepts without EGS-CC specific
aspects) with a minimum set of extensions to ensure consistency of the
mapping and data exchange, without changing the semantics of the XTCE standard.
In addition, the compatibility of XTCE-CC with the ISIS XTCE (XTCE tailoring
by CNES) is being considered already for the production of the XTCE-CC.
An ICD is being produced to define the XTCE-CC tailoring, with an annex
listing the deviations with respect to ISIS ICD, and how to handle them
for compatibility.</font>
<br>
<br><font size=2 face="Arial"><b>Response to Action</b></font>
<br><font size=2 face="Arial">At the end of this exercise there will hopefully
be a tailoring of XTCE, XTCE-CC, that is also compatible with the CNES
ISIS. This tailoring could be a candidate for standardisation similarly
as the one done by NASA with GovSat. This will be known approximately mid
2015. It may also make sense to wait for the publication of XTCE1.2.</font>
<br>
<br><font size=2 face="Arial"><b>Use Cases</b></font>
<br><font size=2 face="Arial">A. European S/C and US MCS: Option 1: US
MCS use XTCE-CC native; Option 2: European S/C generates GovSat; Option
3: A converter exists GovSat<->XTCE-CC</font>
<br><font size=2 face="Arial">B. US S/C and European MCS: Option 1: European
MCS use GovSat native; Option 2: US S/C generates XTCE-CC; Option 3: A
converter exists GovSat<->XTCE-CC</font>
<br><font size=2 face="Arial">C. Interoperability between ESA and CNES</font>
<br><font size=2 face="Arial">D. Use either GovSat/XTCE-CC to exchange
TM/TC info with other applications within the ground segment (e.g. MPS,
SIM, FDS)</font>
<br>
<br><font size=2 face="Arial">Regards,</font>
<br>
<br><font size=2 face="Arial">__Mario</font>
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