Objective
To understand the Basics of Drawing ERD
Instructions:
Please read the following instructions carefully before solving & submitting assignment:
It should be clear that your assignment will not get any credit if:
The assignment is submitted after due date.
- The submitted assignment does not open or file is corrupt.
- The assignment is copied (from other student or copy from handouts).
- The assignment is in the format other than MS Word (doc).
- Student ID is not mentioned in the assignment File or name of file is other than student ID.
Draw an ER Diagram of “Inventory Management System” on the basis of information given below. Follow the given “Rules” to draw Cardinalities and Relationships between Entities.
* ERD must be drawn by using MS-Word. No other submitted format is acceptable.
Entities and Attributes:
Customer:
- C-ID (Key)
- C-Name
- C-Address
- C-Phone#
Order:
- Order-ID (Key)
- O-Description
Invoice:
- Inv-ID (Key)
- Inv-Description
- Total-Amount
Product:
- P-ID (Key)
- P-Name
- P-Price
Category:
- Cat-ID (Key)
- Cat-Description
Vendor:
- V-ID (Key)
- V-Name
- V-Address
Store:
- S-ID (Key)
- S-Location
- S-Phone#
Hall:
- H-ID (Key)
Rules:
Customer can place many Orders at a time. He also may not place any Order
ü There is always one Invoice for each Order.
ü One Order can have one or many Products. And one Product can be ordered many times or may not be ordered at all.
ü A Vendor provides many products and it is also possible that organization order single product from multiple vendors.
ü One Category can have many products, but must have at least one product. And one product must belongs to a single category.
ü A Store has Products of many Categories. And Products of one Category is always placed in one Store.
ü One store has multiple halls and one hall belongs to single store.
Solution: CS403 Assignment No. 02 fall 2011
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