Re: OOOPS! Attributes Requirements to Support OGSI Service Data

Folks,

Sorry, this was OBVIOUSLY in draft form. I was working on it when some fool
(me) pressed the "send all pending" button. There will be a better version
later.



On 16/6/03 17:51, "David Snelling" <d.snelling@fle.fujitsu.com> wrote:

> Folks,
> 
> As per my action from June 16th call:
> 
> Attributes Requirements to Support OGSI Service Data
> ----------------------------------------------------
> 
> The perspective of this list of requirements can be described as an answer
> to the following question,
> 
>  "What must facilities Attributes support in order to support
>  (directly or indirectly) the abstract functions of OGSI Service Data?"
> 
> 
> Handy if the access mechanisms can be reused in other than direct access
> context, e.g. notification.
> 
> Do we need predefined attributes? Probably yes.
> 
> Do we need query across multiple attributes in one service? Yes.
> 
> Ability to restrict access on a per attribute basis.
> 
> Do we need the ability to restrict read vs. write access (by user)? Yes.
> 
> Do we need the ability to restrict read vs. write access (structural)? Yes.
> 
> Need some predefined attributes
> 
> Ability to know (partial?) list of attributes at design time - yes
> 
> Ability to know type of attributes ahead of time - yes (but may be out of
> bands (xsi types).
> 
> Input/output messages that manipulate attributes can be validated against
> WSDL
> 
> Support for static attributes - yes
> 
> Opaque or abstract type xsi type. - yes but I don't fully understand the
> differences here..
> 
> 
> Attributes can be inherited through WSDL 1.2 inheritance - yes
> 
> Support metadata on attributes (creation date, type, description...) - yes
> we need the mechanism.
> 
> 
> Allow bulk retrieval of several attributes in one operation - yes.
> 
> 
> Attributes can be of any schema type (simple or complex) - yes

-- 

Take care:

    Dr. David Snelling <d.snelling@fle.fujitsu.com>
    Fujitsu Laboratories of Europe
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