In any industry, a convention is a kind of standard practice to guide a practitioner in carrying out his or her work. In the data industry, three categories of conventions are relevant to this discussion:
· Notation conventions
· Aesthetic Conventions
· Architectural Conventions
Notation conventions refer to the syntax of a model. This consists of the set of symbols (boxes, circles, lines, et cetera) that carry structural meaning in the model. These are the symbols that describe classes of things of significance, attributes of those things, and relationships among them. Various sets of notations have been created since Dr. Peter Chen originally invented data modeling, and everyone seems to have a favorite. ...