Assignment Task:

Problem statement

The assignment has the following parts. 

  1. Describe a database application that you know of. Example applications can be for medical clinics, shops, government departments, schools, factories, companies, transportation, real estate, etc. The size of the application should have at least 3 classes not including sub classes and transaction classes. A transaction class describes a relationship like an association class does or a class that is equivalent to an association class. An example is given in the appendix of this specification. A builder database application below is given to you as an example. 

The application must have reasonable complexity in terms of many-to-many relationships, association classes, and/or inheritance to get full marks. If the classes are not linked logically or the relationships are very simple, a moderation to the full mark will be applied. 

The writing of the description must be cohesive and logically correct. 

  1. Draw a UML diagram for the application to show classes and relationships, indicate candidate keys (CKs) and multiplicities whenever appropriate. This diagram is critical and if it does not capture all the requirements and the constraints of the application, the final database designed will not be complete. 

  2. Convert the UML diagram into a relational database schema; primary keys and foreign keys have to be clearly identified. 

  3. Draw the tables and add sample data for the tables. The number of tuples of your sample data depends on the complexity of your keys and foreign keys. The tuples should be enough to demonstrate various possible values for the constraints. 

 

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  • Uploaded By : Alex Cerry
  • Posted on : July 13th, 2019

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