Relational vs E-R
06 May 1996 updated
What is wrong with E-R?
- Premature encapsulation of attributes within arbitrary entities. Forces
the designer to make early commitments to data structures.
- Limited ability to model constraints which are intra-attribute, possibly
- Requires unmodeled methods to capture ad hoc procedural logic to express
What are some alternatives?
Where to go from here:
Copyright © 1996 Applied
Information Science International