Reference no: EM132278017
Assignment
Objectives
• To develop a conceptual data model diagram
• To perform logical design (optional)
Assignment Specification
In this assignment, youneed to perform the followingtasks for the given case study:
• Draw an Entity Relationship (ER) diagram
• Perform logical design(optional)
• Create3NF Relations(optional)
Please note that the above mentioned optional components,logical design and 3NF relations, will not be marked, however those tasks are expected to enrich your skills in the creation of database in future.
Case Study
CQParcels (CQPS) is well known for its parcel handling business in Australia. It collectsthe parcels from its customers and then transports and delivers them to the respective specified delivery addresses in Australia.
Assignment Requirements
In this assignment,you need to create an Entity Relationship (ER) diagram relevant to the above case study and optionally perform logical design to produce appropriate3NF Relations.
The attributes for various entities have not been purposely described in the case study so that the students are encouraged to further research and list the pertinent attributes in addition to the required identifier for each and every entity in their ERD.
Draw an appropriate ER diagram
Use the symbols as prescribed in your unit-textbook to draw the ER diagram (ERD) for the above case study.
Your ERDmust
• show all necessary entities, attributes andrelationships
• show identifiers/identifying attributes as necessary
• show multi-valued attributes, ifany
• show participation andcardinality
• show associative entities, ifappropriate
• show weak entities, if any
• use the notation described in the settext
• use consistent and appropriate naming for entities and attributes as specified in the unit text book
Some business rules or other aspects of the case study may not be clear to you when you read the case study. If this is the case, then you should either approach your lecturer or tutor for clarification, or you may simply make an assumption and then develop your ERD accordingly. For example, the case study might not mention all relevant participation information (also called minimum cardinalities). If so, you may make an assumption about what the minimum cardinalities might reasonably be, and then show them in your ERD accordingly. You should justify each assumption in terms of the business, for example: it is assumed that each customer must have at least one order because it is assumed that the business does not record customer details until the customer makes an order with them. To get yourself started, ask yourself, 'If I were running this business, what things I need to keep a list of?' Write those things down. For each thing, what information would you need to record about it? How can it be identified? The answers to these questions will help you to develop your ERD.
2 Assumptions and Business rules
Provide assumptions and business rules relevant to your ERD.
3 Create Logical Design (Optional):
If you would like to perform this optional component of this assignment, you can map your Entity Relationship diagram (ERD) into relations and make sure that all the relations are in 3NF. Provide all the relationsin the following format:
Customer (CustomerId,CustomerName,Street,Suburb,State,PostCode,Email)
Invoice (InvoiceNumber,InvoiceDate, Total, CustomerId)
foreignkey(CustomerId)referencesCustomer(CustomerId)
How and what to submit:
You must make an electronic submission for this assignment using the appropriate assignment submission link in the unit web site.
You should submit a Microsoft Word document containing:
• A copy of your ERD.
• A list of business rules and assumptions including their justifications.
• 3NF Relations - optional
Your document should contain appropriate identifying information (your student number, name, unit number, etc.) and should contain appropriate headings for each section.
Attachment:- Assessment.rar