Relationships are even more fundamental than the above quotation indicates. They have been around since the beginning of time. Since there have been “things,” there have been relationships among them. And, since humans have been recording in-formation about things, we have been recording relationships. After all, an atom “contains” one or more subatomic particles—a relationship. A figure in a prehistoric cave painting “is adjacent to” some other figure, likely recording some meaningful relationship in the mind of the ancient artist.
KeywordsUnify Modeling Language Class Diagram Object Database Database Application Member Record
Unable to display preview. Download preview PDF.