Identifiers in reference to multiplicity discussions

I see in the TOSCA TC mailing list a discussion about multiplicity. Good that has been a an area of confusion for me.

In particular an email from Peter Bruun about node identities.

I’d just like to mention that in my work on mapping TMForum to TOSCA I have a profile where every one of my node types is derived from a root type which represents the SID RootEntity. The SID RootEntity is defined as having a mandatory Name and ID plus an optional description thus.

ID	RootEntity	required	Unambiguously distinguishes different object instances.
description	RootEntity		This is a string, and defines a textual free-form description of the object. Notes: This attribute doesn’t exist in M.3100. The CIM has two attributes for this purpose, Caption (a short description) and Description.
name	RootEntity	required	Represents a user-friendly identifier of an object. It is a (possibly ambiguous) name by which the object is commonly known in some limited scope (such as an organization) and conforms to the naming conventions of the country or culture with which it is associated. It is NOT used as a naming attribute (i.e., to uniquely identify an instance of the object).

Paul Jordan
OSS Specialist
BT Technology | Tel +44 (0) 3316252643 | paul.m.jordan@bt.com

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