Re: [soa-rm] David Linthicum Says: "ESB versus Fabric.Stop It!"

[Duane Nickull <dnickull@adobe.com>]

Google?

Osi Reference Model is probably the most famous.

1. Open System Interconnection (OSI) reference model:

    * Layer 7—Application
    * Layer 6—Presentation
    * Layer 5—Session
    * Layer 4—Transport
    * Layer 3—Network
    * Layer 2—Data link
    * Layer 1—Physical

2. The workflow reference model (look at Figure 1)

http://www.wfmc.org/standards/docs/tc003v11.pdf

There are several others you can reach with Google

http://ssdoo.gsfc.nasa.gov/nost/wwwclassic/documents/pdf/CCSDS-650.0-B-1.pdf
http://ssdoo.gsfc.nasa.gov/nost/isoas/ref_model.html
http://www.isotopicmaps.org/tmrm/
http://earthref.org/GERM/index.html?main.htm

This one I really like:
http://www.digitalearth.gov/derm/v05/index.html

http://www.whitehouse.gov/omb/egov/a-2-prm.html

Interesting enough - our TC comes up several times in the top ten
http://www.google.com/search?as_q=reference+model&num=10&hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial_s&btnG=Google+Search&as_epq=&as_oq=&as_eq=osi&lr=&as_ft=i&as_filetype=&as_qdr=all&as_occt=any&as_dt=i&as_sitesearch=&safe=images
when you exclude the phrase "OSI"

Duane

Chiusano Joseph wrote:

>>-----Original Message-----
>>From: Duane Nickull [mailto:dnickull@adobe.com] 
>>Sent: Wednesday, May 25, 2005 12:33 PM
>>Cc: soa-rm@lists.oasis-open.org
>>Subject: Re: [soa-rm] David Linthicum Says: "ESB versus 
>>Fabric.Stop It!"
>>
>>
>>
>>Chiusano Joseph wrote:
>>
>>    
>>
>>>Which brings us back to what I believe is the single most important 
>>>question for us to answer: Does one service constitute a 
>>>      
>>>
>>SOA? Or are 2 
>>    
>>
>>>or more services required?
>>> 
>>>
>>>      
>>>
>>An SOA infrastructure (constrained by a specific SOA) will 
>>*probably* have more than one service.  A Reference Model for 
>>SOA *will* only have one service expressed, in alignment with 
>>other reference models.  
>>    
>>
>
>Seeking to be educated - please provide examples of "other reference
>models".
>
>Thanks,
>Joe
>
>Joseph Chiusano
>Booz Allen Hamilton
>Visit us online@ http://www.boozallen.com
> 
>  
>
>>We can still demonstrate in appendix 
>>B the realtionship between these two things.  Doing so would 
>>be prudent IMO.
>>
>>    
>>
>>>If 2 or more services are required, then it seems to me that 
>>>      
>>>
>>in order 
>>    
>>
>>>to call something a *SOA* reference model, the notion of multiple 
>>>services must be incorporated - as that is the minimal amount of 
>>>information necessary to *effectively* represent/model the "targeted 
>>>entity" (which is SOA) for the intended audience.
>>>
>>>If one service constitutes a SOA, this implies that a SOA 
>>>      
>>>
>>may have more 
>>    
>>
>>>than one service. It then seems to me that one has a choice for their
>>>RM: include only a single service in the model, or include multiple 
>>>services. The question then becomes which approach enables the most 
>>>effective representation for the intended audience.
>>>
>>>So as you see, I believe everything flows from this single most 
>>>important question.
>>> 
>>>
>>>      
>>>
>>Which has been answered many times in the same manner I 
>>believe.  RM has one, RA or other specific archtiectures CAN 
>>have more than one, but do not have to to be conformant with the RM.
>>
>>Duane
>>
>>    
>>