Difference between revisions of "Attribute Model"

Revision as of 21:19, 7 February 2008

This page describes the Higgins concept of Attribute Model

Defines the type(s) of the value(s) of an Attribute (e.g. "string" or "calendar-event")
May define the minimum cardinality of an Attribute--the minimum number of values that are allowed (e.g. >=3 values)
May define the maximum cardinality of an Attribute--the minimum number of values that are allowed (e.g. <=100 values)

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-=== Attribute Value Model (AVM) (e.g. directory string)===
-* An AVM MAY specialize:
-** a base XML Schema type (e.g. String) for literal AVMs
-** OR a complex AVM
-** OR another AVM
-* An AVM defines a set of constraints on its value(s) including:
-** Value must be one of {"red", "green", "blue"}
-** Syntax constraints (e.g. regular expression)
-** ranges (e.g. less than 5, more than 100)
-** matching rules
-** THIS SECTION NEEDS WORK
 == HOWL ==