Page 14 - الحاسب الآلي ثانية إرشاد 2

‫أﻧﻈﻤﺔ ﻗﻮاﻋﺪ اﻟﺒﻴﺎﻧﺎت‬ ‫اﻟﻔﺼﻞ اﻷول‬

. .

Product M:N Supplier
M

‫ﻋﻼﻗﺔ‬

-

Logical Design

Software . ‫ ﻜﻤﺎ ﻓﻰ ﺸﻜل‬Hardware

Students Students/Courses Courses

… Physical Design -
Abstraction Levels Abstraction Levels -١

Reality ١٤