[ogsa-wg] OGSA Evolution Policy Statement Draft 2

[David Snelling]

Mario,

On 13 Apr 2005, at 14:01, Mario Antonioletti wrote:

> 	o Would be good to clarify whether profiles only clarify
>           existing standards or wtherer they can change them? I
> 	  would hope only clarify or restrict but do not change.
> 	  Should this be stated explicitly?

This is indeed the case. The Profile Template document outlines this in  
detail and follows exactly the WS-I formulation of profiles. There are  
a bunch of other details also outlined here as well.

> 	o I worry about the statement that profiles need not be
> 	  consistent with other profiles. This then puts in a
> 	  requirement for meta profiles to clarify
>           interoperability issues between profiles
> 	  and you get into an endless loop. Surely once a
> 	  profile is accepted by the GGF process other profiles
> 	  should be consistent with their predecessors *unless*
> 	  they have good reason not to do so. People need to
> 	  talk to each other to make sure profiles interoperate
> 	  at some level.

This is the fine line we are trying to tread. Clearly, the potential  
for conflicting profiles is a danger to interoperability. However, in  
order to foster continued innovation, we have not enforced a notion  
that all subsequent profiles be consistent with those already published  
(the best solutions might come later).

Therefore, the value of consistent profiles verse the value of a new  
one etc. will be addressed in the internal OGSA review process and then  
again in the public comment period. I think we can make it work, but we  
do see your point and have discussed it at length.

> Also, one typo on page 2 end of first paragraph "later"->"latter",

Thanks.

>
> 			Mario
>
> On Tue, 12 Apr 2005, David Snelling wrote:
>
>> Folks,
>>
>> Following a weeks time for comments, I have received very little but
>> valuable feedback. I have clarified the definition of the
>> Infrastructure Level, which several people noted was not as clear as  
>> it
>> could be.
>>
>> Further comments welcome. It is not yet frozen.
>>
>> --  
>>
>> Take care:
>>
>>      Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
>>      Fujitsu Laboratories of Europe
>>      Hayes Park Central
>>      Hayes End Road
>>      Hayes, Middlesex  UB4 8FE
>>
>>      +44-208-606-4649 (Office)
>>      +44-208-606-4539 (Fax)
>>      +44-7768-807526  (Mobile)
>>
>
> +---------------------------------------------------------------------- 
> -+
> |Mario Antonioletti:EPCC,JCMB,The King's Buildings,Edinburgh EH9 3JZ.   
>  |
> |Tel:0131 650  
> 5141|mario at epcc.ed.ac.uk|http://www.epcc.ed.ac.uk/~mario/ |
> +---------------------------------------------------------------------- 
> -+
>
>
-- 

Take care:

     Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
     Fujitsu Laboratories of Europe
     Hayes Park Central
     Hayes End Road
     Hayes, Middlesex  UB4 8FE

     +44-208-606-4649 (Office)
     +44-208-606-4539 (Fax)
     +44-7768-807526  (Mobile)