ENTITY RELATIONSHIPS, BUSINESS RULES, LINKS FOR STUDY HELP

I FOUND THE FOLLOWING LINKS

HELPFUL FOR THE UNDERSTANDING

OF THE ENTITY RELATIONSHIPS

AND THE BUSINESS RULES 

THAT ACCOMPANY APPLICATION DEVELOPMENT

PLEASE REPORT ANY DEAD LINKS……

->>>>MY EMAIL ADDRESS->>>>WEBDEVDEA@GMAIL.COM<<<------

THE ENTITY-RELATIONSHIP MODEL

ENHANCED E-R MODEL
Cardinality Notations