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CS713 Object Oriented DBMS Assignment No 01 Spring 2019 Solution & Discussion Due Date: 20-05-2019

CS713 Object Oriented DBMS Assignment No 01 Spring 2019 Solution & Discussion Due Date: 20-05-2019

Question No. 1(a) [Marks: 15]

Consider a windows interface that has one toolbar and one menu bar on it. The menu bar has different menu items whereas tool bar contains different icons on it. Following (class) diagram shows the relationships:

Here interface seems to be a complex object that further has reference of two different objects (menu bar and toolbar). Note that each object shown in above diagram may has its attributes which you can suppose by yourself.
You are required to transform the above scenario in relational database model and show the final tables and associations.
Question No. 1(b) [Marks: 15]

Consider the following inheritance relation:


There are three classes named “Shape”, “Rectangle” and “Circle”. “Rectangle” and “Circle” classes are derived from “Shape” class.
You have studied three approaches to convert such relations in relational database model. Mention the resulting table(s) using all three approaches separately for above scenario.

Question No. 2 [Marks: 20]

Read the paper titled “Achievements and Weaknesses of Object-Oriented Databases” attached with this assignment folder and answer the following:

Q1: Write brief summary of the paper (250 words maximum)

Q2: Write down the critical review (strengths and weaknesses) of the paper.

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