entity relationship model (Cont.)

• E-R model of real world 
• Entites (objects)

EX . Customer , accounts, banks branch
 -Relationship Between entities
EX. account A -101 is held by customer Johnson
EX.Relationship set depositor associate customers with accounts .

• Widely used for Database Design 
• Database design in E-R model usually converted to design in the relational model (coming up next ) which is used for storage and processing .