Object oriented programming in Oberon 2

The concept of object-oriented programming has significantly influenced programming methodology and expanded the range of programming languages. Originating in the sixties for simulating discrete event systems, it first appeared in Simula 67. However, it took nearly two decades for the method to gain traction, and today it is a crucial and powerful technique. Despite its importance, the term has become a buzzword, often misused by those hoping to capitalize on ill-informed clients who view it as a cure-all. This raises an essential question: what truly lies behind object-oriented programming? It involves more than just prioritizing data as objects over algorithms; it represents a deeper understanding of programmed systems. This textbook aims to clarify the essence of object-oriented programming, highlighting new concepts and constructs, their reasonable applications, and the advantages they provide. Importantly, it emphasizes that not all programs benefit from being simply reformatted in an object-oriented style.