
Silverston c04.tex V2 - 11/21/2008 3:02am Page 186
186 Chapter 4 ■ Hierarchies, Aggregations, and Peer-to-Peer Relationships
References
1
For more about the organization of data see Chapter 5 of this book.
2
This definition was taken from Ananda Amatya (March 1999). Available
at
http://www.dcs.warwick.ac.uk/∼ananda/umlNotes/node155.html.
3
This definition was take n from Alf A. Pederson’s article ‘‘Entity Rela-
tionship Modeling’’ (April 2005). Available at
http://www.devarticles.
com/c/a/Development-Cycles/Entity-Relationship-Modeling
.
4
This definition was taken from the Free On-line Dictionary of Computing
(© 1993–2008 Denis Howe). A vailable at
http://foldoc.org/index.
cgi?query=hierarchy&action=Search
.
5
Definition taken from Dictionary.com.
6
Please refer to Chapter 6 of The Data Model Resource Book, Revised Edition,
Volume 1, A Library of Universal Data Models for all Enterprises,byLen
Silverston (Wiley. 2001) for a discussion of this specific example.
7
Source for this definition is the Universal Data Models Repository. ©
Universal Data Models 2001–2008.
8
You can find a v ery interesting discussion on many-to-many recursive
relationships at the Steve Hoberman & Associates web site at
http://
www.stevehoberman.com/DesignChallenge/challenge11response.htm
.
9
You can find good guides for the creation and resolution of many-to-
many relationships in CASE*METHOD: Entity Relationship Modeling by
Richard Barker (Addison ...