<span style=" font-size:10pt;font-family:sans-serif">Dear all, <br>
<br>
Please find below the minutes of the MP&S WG meeting from yesterday.
Let me know if I missed something.<br>
<br>
Best regards, <br>
<br>
Peter <br>
<br>
-- <br>
<br>
Subject: Mission Planning & Scheduling WG meeting<br>
Date and time: 22 February 2021, 16:00 - 18:00 CET<br>
Location: WebEx <u><br>
<br>
Attendance list</u><br>
<br>
- Peter van der Plas (ESA, chair)<br>
- Marc Duhaze (CNES, deputy chair)<br>
- Christoph Lenzen (DLR) <br>
- Dominik Marszk (ESA) <br>
- Geoffrey Lochmaier (NASA)</span>
<br><span style=" font-size:10pt;font-family:sans-serif">- Guillermo Buenadicha
(ESA)<br>
- Maria Woerle (DLR)<br>
- Rachel Jenkins (ESA)<br>
- Roger Thompson (ESA)<u><br>
<br>
Agenda</u> <br>
<br>
1. MP&S Blue Book update<br>
2. Planning and next steps<br>
3. CCSDS Spring Meeting<br>
4. AOB<br>
<u><br>
Minutes</u> <br>
<br>
1. MP&S Blue Book update <br>
<br>
Roger has provided on the GDrive an update of the MP&S Blue Book (draft
G) and Enterprise Architect model (draft U), including the XML Schemas
for file based exchange.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Some open points
as provided by Roger (email 10/02/2022) were discussed. The following was
agreed in the WG:</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif"> 1. The
WG agreed with option b) A supertype is defined to allow the three different
Update structures to be supported through polymorphism. An additional key
shall be provided to the service to allow the subscription to one or more
update structure types.</span>
<br><span style=" font-size:10pt;font-family:sans-serif"> 2. The
WG agreed with the Position and Direction structure updates. This will
allow for a simplification of the Constraints and Triggers, but not on
the Repetitions. It was mentioned that the base classes in Triggers and
Repetitions shall as such as possible capture common attributes at the
highest possible level.</span>
<br><span style=" font-size:10pt;font-family:sans-serif"> 3. The
proposal from Roger (annex in the BB) for the representation of literals
was discussed but not yet conclusive. WG members to further review and
provide feedback on the issue. To be consolidated in the next WG meeting.</span>
<br><span style=" font-size:10pt;font-family:sans-serif"> 4. It was
agreed to represent these enumerated types simply as Strings in the Information
Model. This has the drawback that e.g. with the XML Schemas no type checking
will be performed. This can however be added as part of the tailoring for
a specific mission, where the enumerations can be added to the XML Schemas.
This mission specific tailoring shall be explained in the BB.</span>
<br><span style=" font-size:10pt;font-family:sans-serif"> 5. Peter
showed the first results of a conversion tool that is now able to improve
the structure of the XML Schemas produced by EA, in particular for the
List types, where the elements will be encapsulated in an additional element
level. Christoph mentioned that when using XML Spy, this feature would
not be needed. However, it was acknowledged that in case no tool is available,
the XML files would be better readable with the improved structure. In
addition, the conversion tool can be used to fix certain XML Schema features
(like patterns) that do not seem to work with the EA generator.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">In addition, an
issue with the PUB-SUB was addressed by SM&C and the impact on MP&S
was discussed and it was agreed that the simplifications proposed by SM&C
do not have significant impact for the MP&S Services.<br>
<br>
2. Planning and next steps</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">The MP&S Blue
Book is expected to be ready for Agencies Review by the end of March. However,
CESG has raised its concerns regarding the parallel review of both the
MAL BB and MP&S BB, as there is a dependency here. The decision will
ultimately be with MOIM-AD how to proceed with the MP&S BB review.
>From the WG perspective, the MP&S BB should be finalised as far as
possible, and the current assumptions on the expected MAL updates shall
be listed.<br>
<br>
3. CCSDS Spring Meeting</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">CCSDS Spring Meeting
2022 will take place in Huntsville, Alabama from 9-13 May. For the moment,
the assumption is that the meetings will take place in-person. As such,
WG members are invited to make their travel arrangements, however with
sufficient flexibility, as in the previous two years the meetings were
changed into teleconferencing only on short notice. It shall be ensured
that there are adequate teleconferencing/video conferencing facilities
available in the meeting rooms, such that the meetings can be followed
remotely by the ones that are not able to travel to Huntsville. <b>Could
anyone who will be restricted by his organisation to travel in-person please
let me (Peter) know?</b></span>
<br><span style=" font-size:10pt;font-family:sans-serif"><br>
4. AOB <br>
<br>
The next MP&S WG meeting is planned for <b>Tuesday 22 March</b> 2022,
16:00 - 18:00 CET. Peter to send the meeting invitation. <br>
<br>
Best regards, <br>
<br>
Peter <br>
</span>
<br>
<br><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b>ESA
- European Space Agency</b><br>
</span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><br>
<b>Peter van der Plas</b></span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
EGSE and Ground Systems section (TEC-SWG)<br>
Directorate of Technology, Engineering and Quality<br>
<b><br>
ESTEC</b><br>
Keplerlaan 1, PO Box 299, NL-2200 AG Noordwijk, The Netherlands</span><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u><br>
</u></span><a href=mailto:Peter.van.der.Plas@esa.int><span style=" font-size:8pt;color:#8f8f8f;font-family:Verdana"><u>Peter.van.der.Plas@esa.int</u></span></a><span style=" font-size:8pt;color:#808080;font-family:Verdana">
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