Friday, September 28, 2012


In diploma i've learnt about ERD diagram, DFD, Flow chart and Diagram zero.
 I thought in degree all this diagram i never learn again.tup tup...the all diagram still use in this subject.. heEeEe
i still remember a little bit of this diagram, but most of it i forgot. hahahhahaha

ERD diagram have entities,attribute and relationship.

Entity- an entity is an object or copncept about which you want to store information.

Weak Entity - entity must defined  by foreign key relationship with another entity.

Relationship- Relationships illustrate how two entities share information in the database structure.





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