Question:
- "What is IDEF1X ?" or
- "What does this symbol mean?"
and consequently we go off on a side trip.
Answer: This page introduces IDEF1X and identifies the notation, so that standard-compliant Data Models can be read and fully understood. There are many closely related subjects, which require formal education and the links are provided below in the list.
- the Relational Model
- 2nd and 3rd Normal Forms in general, and the specific Relational Normalization identified in the Relational Model.
- The IDEF1X Methodology or Relational Database Design