4. Implementation

4.1 Model limitations

It's important to reiterate the limitations inherent in the class-instance model, so as to remain fully aware of the difference between what can be expressed directly within this framework and what requires the use of special techniques and the construction of complex superstructures. Let's reiterate that, in general, object-oriented programming makes it much easier to tackle difficult problems, but that some of them are just as resistant to it as to conventional programming....