2006-11-24 07:15:54 · 2 answers · asked by shiko 1 in Computers & Internet ➔ Programming & Design
System design is a generic term for the architecture of a System.
ERD is short for Entity Relationship Diagram. It's a diagram you make when you're designing a relational database to support your system. Typically you design the database up front. People who design databases for a living use ERD tools, that let you capture everything you need to about the database, and generate the necessary Data definition language (DDL) SQL scripts to generate the tables, indexes, triggers and other objects you've designed.
2006-11-24 07:27:14 · answer #1 · answered by Gizmo L 4 · 0⤊ 0⤋
system design is just the term for making the blueprints of your system. ERD (Entity Relationship Diagram) is a chart for making relational databases. Its a older way of designing. More people are moving towards using UML for the more object oriented approach
2006-11-24 16:50:05 · answer #2 · answered by Anonymous · 0⤊ 0⤋