Introduction to OOP Chapter 23: Object Interconnections : next previous audio real text

Internal Data Coupling

class  SneekyModifier {
  void sneeky () {
    // change my friends name		
    myFriend->name = "Lucy";
  Person * myFriend;

class Person {
  Person () { 
    name = "Larry";
  string name;

This is bad because it makes it difficult to understand a single class in isolation.

Can be mitigated by always making your data areas private or protected, and not exposing pointers to these areas.

Intro OOP, Chapter 23, Slide 07