Explain entity relationship model and object oriented model
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An Entity-Relationship model is generally one used to define business relationships in a relational database. Object-Oriented modeling is generally used to design code. In practice, the Entities in an E-R model often end up representing the objects in code, especially if the code models the database.
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To explain how a software design may be represented as a set of functions which share system state information. To introduce notations which may be used to represent a function- oriented design. ... To compare, using a common example, sequential and concurrent function-oriented design and object-oriented design.
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