December 2016
Intermediate to advanced
401 pages
16h 1m
English
Content preview from Software Engineering by Pearson
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Object-oriented Concepts and Principles 115
Figure 7.8 Hierarchy of a class account
Account
Current Loan Savings
Cash credit
Fixed deposit
Personal loan Housing loan
Businessloan
7.2 RELATIONSHIPS
Just as Entity Relationship Diagram (ER Diagram) helps in the design of a database in traditional meth-
odologies, the identifi cation of relationships greatly helps in the design of objects. Let us consider the
example of the banking system to explain the concept of relationships. e ‘Account’ is one of the main
classes in the banking system. ere can be three types of accounts such as loan account, current account
and savings account. Hence, three types ...
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