[Pgi-wg] OGF PGI Software Engineering Use Case Template

[Johannes Watzl]

Dear Etienne, Mark,

thanks for your comments. I will discuss with Morris and we will come
back to you. Maybe we put it on the agenda for the Thursday call.

Best,
Johannes


Am 12.07.10 19:36, schrieb Mark Morgan:
> Having already put the effort into writing up the Genesis II use cases
> in the OGSA Use case template format, I'm not thrilled with the prospect
> of doing so again in a different format.  I know that the use case
> template went out not too long before the use cases were supposed to be
> due, but if we are going to have this type of discussion about things
> every time, then we need to take more time deciding and voting on things
> like templates ahead of time and not rush the process.
> 
> -Mark
> 
> On Jul 12, 2010, at 11:49 AM, Etienne URBAH wrote:
> 
>> Johannes, Morris and all,
>>
>>
>> Short summary
>> -------------
>> The OGSA-based 'PGI Use Case Template' is trash.  Forget it.
>>
>> I propose a 'PGI Software Engineering Use Case Template' (based on
>> Wikipedia work) at http://forge.gridforum.org/sf/go/doc16024?nav=1
>>
>> Are you ready to invest your work into professional Software
>> Engineering ?
>>
>>
>> Detailed argumentation
>> ----------------------
>> As promised, I have studied the 'PGI Use Case Template' based on the
>> OGSA template.
>>
>>
>> Regrettably, this OGSA-based template :
>>
>> -  puts the focus on 'Customers', which are very specific roles, and
>> and more useful in 'for-profit business' than in 'scientific data
>> processing',
>>
>> -  puts the focus on 'Scenarios', which is a plural, whereas best
>> practice is to describe in detail only the primary scenario,
>>
>> -  puts the focus on 'Applications', whereas for Service Grids, an
>> Application is just one of the several files given as input to an
>> Activity,
>>
>> -  puts the focus on 'Involved resources', which are internal to the
>> system, and MUST STAY HIDDEN following the very basic OO principle of
>> ENCAPSULATION,
>>
>> -  forgets to request the definition of the SYSTEM and the description
>> of its BOUNDARIES, whereas such definition and description is a core
>> issue for Distributed Data Processing,
>>
>> -  forgets to request the definition of preconditions (apart security,
>> which is mentioned only after the scenario(s) which uses the security
>> context).
>>
>> So, this template is perhaps suited for dissemination and for
>> submission of 'papers', but NOT AT ALL for professional Software
>> Engineering.
>>
>> This is perhaps one of the causes of the very moderate success of OGSA.
>>
>> Therefore, writing comments inside this OGSA-based template in the
>> hope of improving it would be a complete waste of time.
>>
>>
>> Instead, I have used http://en.wikipedia.org/wiki/Use_case as basis to
>> write my own proposal, which I call 'PGI Software Engineering Use Case
>> Template', and is available at
>> http://forge.gridforum.org/sf/go/doc16024?nav=1
>>
>> The goal of this template is professional Software Engineering,
>> permitting technical understanding, technical criticism and technical
>> improvement.
>> Therefore, the focus is NOT AT ALL on the scientific applications, but
>> on the precise definition of :
>> - The boundaries of the system for which the 'Use Case' captures one
>> behavior,
>> - The list of actors, stakeholders, participants, roles,
>> - The detailed description of the primary scenario of interactions
>> between the actors and the system.
>>
>> The Use Cases which I already published as simple text already contain
>> most of the information required by this professional Software
>> Engineering template.  I will easily reformat them accordingly.
>>
>>
>> This 'PGI Software Engineering Use Case template' is to be improved. 
>> Do not hesitate to provide comments and suggestions.
>>
>>
>> Best regards.
>>
>> -----------------------------------------------------
>> Etienne URBAH         LAL, Univ Paris-Sud, IN2P3/CNRS
>>                      Bat 200   91898 ORSAY    France
>> Tel: +33 1 64 46 84 87      Skype: etienne.urbah
>> Mob: +33 6 22 30 53 27      mailto:urbah at lal.in2p3.fr
>> -----------------------------------------------------
>>
>>
>> On Thu, 08/07/2010 19:45, Etienne URBAH wrote:
>>> OGF PGI telephone conference on 2010-07-08
>>> ------------------------------------------
>>>
>>> ...
>>>
>>> Everyone can add comments to the template for Use Cases
>>> http://forge.gridforum.org/sf/go/doc16013?nav=1
>>> - Etienne will add some comments
>>>
>>> Following people should upload their Use Cases following the template to
>>> GridForge
>>> http://forge.gridforum.org/sf/docman/do/listDocuments/projects.pgi-wg/docman.root.input_documents.use_cases
>>>
>>> :
>>> - Emmanouil for Globus
>>> - Luigi for gLite
>>> - Morris for Unicore
>>>
>>> Following people should convert their Use Cases according to the
>>> provided template :
>>> - Etienne for EDGI
>>> - Aleksandr for ARC
>>>
>>> Next OGF PGI telephone conference on Thursday 2010-07-15 at 15h30 CET
>>
>> _______________________________________________
>> Pgi-wg mailing list
>> Pgi-wg at ogf.org
>> http://www.ogf.org/mailman/listinfo/pgi-wg
> 


-- 
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