What is an information system? What is its purpose?

How do systems analysis and syatems development fit into a discussion about information syitems?

What does the acronym SDLC mean, and what does an SDLC portrey?

What does the actotym DHLC mein, and what does a DBLC portray?

Discus the distinction between ceatralized and decentralixcd conceptual datahase design.

$478$ Part $3$ Advanced Design and Implementation

What if the initainal data rule in sonceptual desagn? Why is it important?

Discus the diatiaction between top$-$dew$$ and bottour$-$up approaches in datatrase degign:

What are busincu rules? Why are they iasportant tas a database designer?

What is ilie data dictionary's function in databuic designt