<font size=2 face="sans-serif">Hi John,</font>
<br><font size=2 face="sans-serif">I have put this as a pseudo RID for
the SFW RID disposition.</font>
<br>
<br><font size=2 face="sans-serif">Regards,</font>
<br><font size=2 face="sans-serif">Holger</font>
<br>
<br><font size=2 face="sans-serif">Holger Dreihahn<br>
European Spacecraft Operations Centre | European Space Agency | S-431<br>
+49 6151 90 2233 | </font><a href=http://www.esa.int/esoc><font size=2 face="sans-serif">http://www.esa.int/esoc</font></a>
<br>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">John Pietras <john.pietras@gst.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">"CCSDS_CSTSWG
(css-csts@mailman.ccsds.org)" <css-csts@mailman.ccsds.org>,
Wolfgang Hell <wo_._he@t-online.de></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">30/04/2019 17:26</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[Css-csts] directive-qualifier
for the 'reset' directive (pseudo RID)</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">"CSS-CSTS"
<css-csts-bounces@mailman.ccsds.org></font>
<br>
<hr noshade>
<br>
<br>
<br><font size=3 face="Calibri">The Sequence-Controlled DP procedure extends
the EXECUTE-DIRECTIVE operation (4.8.4.4) with the ‘reset’ directive
(4.8.4.4.2) and associated directive-qualifier (4.8.4.4.3). </font>
<br><font size=3 face="Calibri"> </font>
<br><font size=3 face="Calibri">The current phrasing of 4.8.4.4.3.1 states
“The </font><font size=3 face="Courier New">directive-qualifier</font><font size=3 face="Calibri">
shall identify the </font><font size=3 face="Courier New">next-data-id</font><font size=3 face="Calibri">
parameter value …”. Although it should be obvious that this is *<b>only</b>*
true when the directive-identifier is ‘reset’, it doesn’t explicitly
state that and could be interpreted as normatively requiring that the directive-qualifier
have this value for *<b>all</b>* directive-identifiers.</font>
<br><font size=3 face="Calibri"> </font>
<br><font size=3 face="Calibri">Elsewhere in the SFW, where extension elements
are added in (name: value/qualifier) pairs, the value/qualifier specification
is conditional on the value of the “name”. I recommend that this be used
here by changing the current wording to:</font>
<br><font size=3 face="Calibri">“For the ‘reset’ (</font><font size=3 face="Courier New">directive-identifier</font><font size=3 face="Calibri">)
directive, the </font><font size=3 face="Courier New">directive-qualifier</font><font size=3 face="Calibri">
shall identify the </font><font size=3 face="Courier New">next-data-id</font><font size=3 face="Calibri">
parameter value …”.</font>
<br><font size=3 face="Calibri"> </font>
<br><font size=3 face="Calibri">I don’t know if there are other instances
of such unconditional specifications of extension values/qualifiers, but
if there are they should be modified in the same manner.</font>
<br><font size=3 face="Calibri"> </font>
<br><font size=3 face="Calibri">Best regards,</font>
<br><font size=3 face="Calibri">John</font><tt><font size=2>_______________________________________________<br>
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