WS-Addressing 1.0 Core -- Notational conventions not explained

WS-Addressing 1.0 Core [1] in sections 2.1 and 3 use notational 
conventions such as:

[address] : IRI (mandatory)

Where the part after the ":" is the 'type' of the property and the
paranthetical part specifies the cardinality.

Section 1.1 (that explains the notational convention) says that it uses 
the same notational convention as Infoset when describing the abstract 
data models. Infoset does not use the convention that is used in Core. 
This new notational conventions should be explained in section 1.1.

-Anish
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[1] http://www.w3.org/TR/2005/WD-ws-addr-core-20050331/