Tree Template.

By Michael Blaha

November 2010:This chapter shows Tree Template. The tree is a term from graph theory. It illustrates the UML template for hardcoded trees. (The Appendix explains UML notation.) A Tree is a hierarchy of entities with the entities of each level having the same entity type. You need not show Tree in a use of the template.
This chapter is from the new book Patterns of Data Modeling by Michael Blaha, CRC Press, 2010. All rights reserved. This chapter is posted on with the permission of the author and publisher. This is the third of three chapters that will be posted over the upcoming months.

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