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Information Quality Applied: Best Practices for Improving Business Information, Processes and Systems
book

Information Quality Applied: Best Practices for Improving Business Information, Processes and Systems

by Larry P. English
October 2009
Beginner to intermediate content levelBeginner to intermediate
839 pages
29h 16m
English
Wiley
Content preview from Information Quality Applied: Best Practices for Improving Business Information, Processes and Systems
140 Part II n The Step-by-Step Guide to the TIQM Quality System
Each Subtype is in fact a ; more specialized classification of members
of the Entity Type. For example, an Employee is a more specialized
kind of Party who must also be a Person.
All Attributes are
;
inherent characteristics of the Type or Subtype with
which they are first associated. Birth date is inherent to Person, not
to the role of a Party as an Employee.
An occurrence of a Subtype inherits ; all Attributes of all its ancestor
super-types. This is a very important rule. The hierarchy is not precise
if there are exceptions to inheritance. It should be noted, however,
that for a given process not all attributes of a super-type are neces-
sarily required for subtype occurrences. For example, Birthdate is an
inherent characteristic of Person. It is a fact required for Customer
and Employee subtypes, but does not need to be known about a
Supplier Contact.
Entity Life-Cycle-State:
■n
The Entity Life Cycle identifies the creation, or existence event, and
;
the deletion, or archiving event.
All Events that may affect or cause significant change to an
;
Occurrence of this Type are identified. Significant change means
that new attributes are known and some different business rules
apply. For example, change of name or address is not a significant
state change event unless new rules apply, such as in insurance
policy coverage.
The ...
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Publisher Resources

ISBN: 9780470134474Purchase book