The World of Conceptual Data Modeling
The virtual world. The world of conceptual data modeling. It has rules. Rules as undeniable and irrefutable as the laws of physics. There are ways that concepts can be assembled, and ways that they can't. #SoftwareEngineering #DataModeling #Software #Data Trouble is, most of us data modelers do not fully understand these rules. And so we keep trying to do magic. It's important to understand these things about your data. Is it a Reference Type? Or is it a "scalar value" type? The latter mans that if an identical value of this conceptual type exists in two or more places, it exists as a copy. ( and importantly SHOULD exist as a copy ) Is it a "primary" or "singular" concept, or is it a relation between two distinctly and independently referenceable concepts? Is it a "concrete" concept or an abstraction/type union? ( this can apply to both singular and relation type concepts ) "Child Entities" are a myth. At least child en...