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I have to design an ERD

2007-11-22 05:45:15 · 2 answers · asked by Anonymous in Computers & Internet Programming & Design

2 answers

Well if you're gonna ask for help how about more info.
Like what is an ERD?

2007-11-22 05:49:04 · answer #1 · answered by Bill 7 · 0 0

Data models are tools used in analysis to describe the data requirements and assumptions in the system from a top-down perspective. They also set the stage for the design of databases later on in the SDLC.

There are three basic elements in ER models:
Entities are the "things" about which we seek information.
Attributes are the data we collect about the entities.
Relationships provide the structure needed to draw information from multiple entities.

So what are you asking? Be specific.

2007-11-22 13:50:20 · answer #2 · answered by Larry W 5 · 0 0

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