[Sis-ams] Draft documents

[Kizzort, Brad]

Scott,

The DDS specification that was adopted is the model and a mapping to IDL, not the wire protocol.  It is available in the public documents section (I verified that I could access without loggin in).

RTI may be suggesting an RFC for the wire protocol.  OMG allows an RFC process for a technology that has already been fielded.  I don't know if the RTPS-DDS protocol specification was presented in January in Burlingame.  I didn't see it explicitly on the agenda for the related task forces.  

Most OMG standards are initiated by an RFP from the OMG.  The steps after the RFP are:
1) Submission of letters of intent (LOI)
2) Submission of proposals
3a) Resolution of differences in a joint submittal by proposers or 
3b) Selection of a proposal
4) Adoption (or rejection)
5) Finalization
6) Publication. 

The RFC process essentially starts with distribution of the proposal for comment and then continues with steps 4, 5, and 6.

Brad K.

-----Original Message-----
From: sis-ams-bounces at mailman.ccsds.org
[mailto:sis-ams-bounces at mailman.ccsds.org]On Behalf Of Scott Burleigh
Sent: Monday, April 04, 2005 11:41 AM
To: sis-ams at mailman.ccsds.org
Subject: Re: [Sis-ams] Draft documents


Kizzort, Brad wrote:
> Scott,
> 
> There is a real-time publish subscribe specification that was adopted within OMG
> last year.

Ah, I hadn't realized the the complete specification had been formally adopted already; it's not yet listed in the Catalog of OMG Specifications.  In a presentation by RTI and Thales, dated 1 November 2004, there's an "RFC Roadmap" slide that says "initial presentation of RTPS-DDS protocol document" was scheduled for the January 2005 OMG meeting, with "present as RFC for adoption" not scheduled until the June 2005 OMG meeting.  But maybe the document these items refer to is not the RTPS wire protocol spec but just the detailed mapping of DDS to that protocol?

  It was co-written by OIS, RTI, and Thales, so it is probably similar
> to the RTPS IEC standard, although I have not looked at the IEC standard.  The
> OMG specification is freely available from www.omg.org in the documents section.
> Its document ID is: formal/04-12-02.pdf, Data Distribution Service.

Excellent.  But I believe that section of the web site is available to members only, and membership charges range from $500 to $12,000 per year, so unfortunately I still can't easily read the document.

  RTI and
> Thales are both offering or going to offer compliant products and there is an
> open source DDS effort underway.  
> 
> DDS is currently a model-based specification, but there is a definite interest
> in defining wire protocols for interoperability between products much like IIOP
> provides for CORBA.  That specification effort has not been kicked off, yet, but
> I believe a Request For Proposal is imminent.

Great, maybe we should participate.

Scott

_______________________________________________
Sis-ams mailing list
Sis-ams at mailman.ccsds.org
http://mailman.ccsds.org/cgi-bin/mailman/listinfo/sis-ams