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how do you get an object to perform a call:
a message
3 pillars of OOSAD
polymorphism, inheritance, encapsulation
the 2 goals of programing:
High cohesion - a class that does one thing and does one thing well
- Loose coupling - minimal information sent to create an object and keep other objects knowing about each other to a minimum
coupling
Interdependence throughout the system
1 Principle of data capture is
always capture it at the source
encapsulation
Protect Data integrity and promote modularity
If you work for a small company you get a
framework
High cohesion -
a class that does one thing and does one thing well
Loose coupling -
minimal information sent to create an object and keep other objects knowing about each other to a minimum