Re: [smartweb-devel] Requirements for auth module

[amarini <ann...@gm...>]

Here is a short document that would be the exposition of my previous er
diagram...
Let me know if you need more extending.
Thank's

AUTHORIZATIONS

The module for authorizations management has a much simple structure.
It must come out easy performing and understanding but at the same time it
must be useful, highly flexible such to produce it untied from the chosen
platform for the applications development. 
For this reason, the entities reflect the greater problems but at the same
time the most common reality. 
The module resolves both authentication and permissions.

AUTHENTICATION

The authentication occurs through the ascription of an user and/or a group
to a subject.
Defined features belong to the subject and they allow to bridge possible
external structures in order to couple the useful information to the regular
management of the authentication of the subject.

PERMISSIONS

The permissions are declared through their grant to a subject.
They are composed from the definition of the scopes and from the privileges
that belongs to the specific roles of the subject. 
The scopes define necessary properties to specify the limit of action for
the tracing of the data and they are directly tied to permissions. 
The privileges establish the allowed functionalities for the role attributed
to the subject and they are directly tied to roles.

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