Introduction

What makes a professional developer? The short answer is obvious: A professional developer produces good-quality code, and reliably so. It is considerably less obvious how the professional developer achieves this. It is not sufficient to know all the technical details about a language and its frameworks, because this does not help in strategic decisions and does nothing for the communication within a team. It is also not sufficient to know the buzz words of design and architecture, because they give no hints as to the concrete implementation. It is not sufficient to read through catalogs of design patterns, because they focus on particular challenges and are easily misunderstood and misused if seen out of context. Instead, the professional ...

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