Humankind has always used some techniques and tools to solve problems since the foragers. As software engineers, we have focused on solving specific problems with many different methods and tools since the 1960s. However, many of us have been over-focused on mastering these techniques and tools, so our solutions have strayed from the design purpose of our products.

This book outlined how to think like product persons or other stakeholders – to understand the design purpose – without getting stuck with the code. In addition, I mentioned that Allen Newell and Herbert Simon stated in problem space theory in their iconic book 'Human Problem Solving' that the solution is not linear. It actually has more than one dimension. It is necessary to understand the problem space in software engineering, namely the product, to reach a perfect solution. It also deals with the phenomenon of being a product-minded engineer, which has been ingrained in our genes since the existence of humanity but lost over time for many reasons. The "product" mentioned in the book refers to the problem in contrast to its general form.

In this book, I stated how we can gain the product-first approach. I have shared methods and experiences that I sincerely believe may benefit you. I hope this book will enable you to include product-first intent in your code-first perspective.