[Moims-ipr] Fw: [CESG] CESG Final Review of XFDU Structure and Construction Rules

[Nestor.Peccia at esa.int]

----- Forwarded by Nestor Peccia/esoc/ESA on 25/07/2008 15:46 -----
                                                                             
             Nestor                                                          
             Peccia/esoc/ESA                                                 
                                                                          To 
             25/07/2008 01:19           "Adrian J. Hooke"                    
                                        <adrian.j.hooke at jpl.nasa.gov>        
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                                        cesg at mailman.ccsds.org,              
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                                        CCSDS Rapporteur                     
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                                                                     Subject 
                                        [CESG] CESG Final Review of XFDU     
                                        Structure and Construction Rules     
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             
                                                                             



Adrian,
Sorry for an extra e-mail but the holiday period makes it difficult (I am
currently on the beach). Lou Reich was not reachable until yesterday, but I
got today further explanations from him. I hope this also helps.
ciao
nestor
======================================

The non-expansion of the bytestream object was an EDITORIAL decision.
When the final schema was produced it was impossible to see the double
line the shows the bounds of the bytestream object as opposed to the
data object. Sergey and Lou tried different techniques but could not keep
the schema at one  readable page and therefore did not include the
expansion.

The extension object was a concern  from the beginning of the draft Blue
Book generation. Lou had discussions with Don Sawyer and presented this to
the IPR WG during the RID discussions.  Neither Don nor the IPR WG
thought the change was large enough to trigger a new review.  I also had
discussions with Dan Crichton and Steve Hughes and they concurred that
the change was not large enough to trigger a new review.  There were
also discussions with Tom Gannett and he did not think that the change
was not large enough to trigger a new review.
The Implementation Report Yellow Book included extension object.


Lou has had several email exchanges with Tom Gannett on the diagram
quality including one where he told him that we could not do it on our
current tool and he responded that if it was ok with us it was ok with
him. Lou thinks that changing to a different design tool such as oxygen or
xml spy to get higher quality diagrams would be a major change.  Many of
the figures are the same figures as those that appeared in the Red
Book.  Any figures that were replaced are of the same quality as the
originals.  There were no RIDs or comments from the Red Book review
regarding quality of the figures.