Monday, April 25, 2011

::::|| VU ||:::: CS403_Assign.02-(Use Chen’s notation)

See the attachment for Chen's Notation Method 

Q Draw an E-R diagram for each of the following situations:

  1. A University [Entity-01] has many [One-to-Many] departments [Entity-02] whereas each department belongs to that particular [One-to-One] university. That university has also many [One-to-Many] buildings [Entity-03] whereas each building belongs to that particular university [One-to-One]. The University also has many [One-to-Many] employees [Entity-04] whereas each employee belongs to that particular university [One-to-One]. Every employee has only one [One-to-One] parking space [Entity-05] whereas each parking space belongs to only one [One-to-One] employee. Department offers many [One-to-Many] study programs [Entity-06] whereas each programs offered by only a single [One-to-One] department. 7.5 Marks
  2. In a shopping Store [Entity-01] there are many [One-to-Many]  supervisors [Entity-02]whereas each supervisor belongs to one[One-to-One]  store. Product [Entity-03] belongs to a single [Many-One] vendor [Entity-04] whereas vendor provides so many [One-to-Many] products. Product belongs to a single [One-to-One] category [Entity-05] whereas category has many [One-to-Many]  products. A category belongs to a single [One-to-One]  shelf [Entity-06] in a store whereas a shelf may have more than one [One-to-Many] categories' products.7.5 Marks
  3. Guidelines / Instructions
  4. It is required to draw Entity Relationship Diagrams for each of the upper situations using Chen's notation


Best Wishes,
"...SUBHANALLAHI WABI HAMDIHI...SUBHANALLAH IL AZEEM..."
Muhammd Ishfaq
MCS 2nd Semester (PakPattan)



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