Practical Object-Oriented Design in Ruby: An Agile Primer

Foreword

One of the core truisms of software development is that as your code grows and requirements for the system that you are building change, additional logic will be added that is not yet present in the current system. In almost all cases, maintainability over the life of the code is more important than optimizing its present state.

The promise of using object-oriented (OO) design is that your code will be easier to maintain and evolve than otherwise. If you are new to programming, how do you unlock these secrets to maintainability using OO? The fact is that many of us have never had holistic training in writing clean object-oriented code, instead picking up our techniques through osmosis from colleagues and a myriad of older books and online ...