SriMaddy/poodr - ch 1

## poodr - ch 1
1) World is Procedural : sequence of actions like human is getting up, taking bath, going office, return home
2) World is also Object oriented : interacting with people : spouse_step_on_cat (heart beat increses for cat and also for spouse)
3) OOD takes us to collection of predefined procedures to messages passing between objects
4) How to learn OOD : Immerse yourself in objects
5) Software is being built for reason like hospital management, games, etc.
6) If we dont need to change design not matters but changes are unavaidable
7) Why change is hard: having more dependency, not proper designed coding
8) SOLID : Single responsibility, Open-Closed, Liskov Substitution, Interface Segregation, Dependency Inversion
9) DRY - Dont Repeat Yourself and Law of Demeter
10) How design fails : due to less designed code which can add feature but it will break everything on other hands, can not add feature as it was not designed to do that
	1) World is Procedural : sequence of actions like human is getting up, taking bath, going office, return home
	2) World is also Object oriented : interacting with people : spouse_step_on_cat (heart beat increses for cat and also for spouse)
	3) OOD takes us to collection of predefined procedures to messages passing between objects
	4) How to learn OOD : Immerse yourself in objects
	5) Software is being built for reason like hospital management, games, etc.
	6) If we dont need to change design not matters but changes are unavaidable
	7) Why change is hard: having more dependency, not proper designed coding
	8) SOLID : Single responsibility, Open-Closed, Liskov Substitution, Interface Segregation, Dependency Inversion
	9) DRY - Dont Repeat Yourself and Law of Demeter
	10) How design fails : due to less designed code which can add feature but it will break everything on other hands, can not add feature as it was not designed to do that