Lecture 6 - Modeling Techniques - created from Mind Map

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Data-flow Models(DFD)

Graphically Represent

External entities

Processes

Data-flow

Data Stores

Object Oriented Model

Object - Major actors of system

Basic Concept

Class - Implementation of an object

Analyse domain

Encapsulation

Inheritance

Prevent unauthorised access of data

Packaging of data and operation

Lower level object inherits from parent

Object share common attributes

Entity Relationship Model

Show the relationship between different entity

Lecture 6 - Modeling Techniques