Lecture 2

• We acheive Abstraction using Encapsulation
• Also, we do Data hiding using Encapsulation
• Inheritance allows to do Code reusability
  • represented by IS-A relationship
  • There is a Generalized class and a Specialized class
    • specialized class IS-A generalized class
• Polymorphism - same name different forms
  • Method overloaidng, overriding

Analysis and Design

• Design is talking about solution part
  • How part of it
  • independent of any prog lang
• analysis is talking about problem part
  • What part of it
• Firstly we do analysis to understand the problem in hand
• now, we think about
• In analysis, there would be some challenges, but there would be domain experts there
  • technical skills would not be required too much
  • understanding capabilities etc will be required there
• Design is more challenging
  • You need to check all possible solutions
  • and pick up the best solution possible