Book Image

Software Architecture for Busy Developers

By : Stéphane Eyskens
Book Image

Software Architecture for Busy Developers

By: Stéphane Eyskens

Overview of this book

Are you a seasoned developer who likes to add value to a project beyond just writing code? Have you realized that good development practices are not enough to make a project successful, and you now want to embrace the bigger picture in the IT landscape? If so, you're ready to become a software architect; someone who can deal with any IT stakeholder as well as add value to the numerous dimensions of software development. The sheer volume of content on software architecture can be overwhelming, however. Software Architecture for Busy Developers is here to help. Written by Stéphane Eyskens, author of The Azure Cloud Native Mapbook, this book guides you through your software architecture journey in a pragmatic way using real-world scenarios. By drawing on over 20 years of consulting experience, Stéphane will help you understand the role of a software architect, without the fluff or unnecessarily complex theory. You'll begin by understanding what non-functional requirements mean and how they concretely impact target architecture. The book then covers different frameworks used across the entire enterprise landscape with the help of use cases and examples. Finally, you'll discover ways in which the cloud is becoming a game changer in the world of software architecture. By the end of this book, you'll have gained a holistic understanding of the architectural landscape, as well as more specific software architecture skills. You'll also be ready to pursue your software architecture journey on your own - and in just one weekend!
Table of Contents (14 chapters)
Section 1: Introduction
Section 2: The Broader Architecture Landscape
Section 3: Software Design Patterns and Architecture Models
Section 4: Impact of the Cloud on Software Architecture Practices
Section 5: Architectural Trends and Summary

Software architecture in a nutshell

However rich the literature is on the topic, it's not so easy to find a common definition of software architecture. We as architects like to decouple things, so let's decouple the words software and architecture. Starting with software, we can give this broad definition: computer programs. Our second word, architecture, can be defined as the art of designing buildings, houses, and the like. If we extrapolate a bit, we could define software architecture as the art of designing computer programs. This definition sounds very broad.

Rest assured, we can evacuate hardware from the equation because it represents the machines themselves. Phew—this should make our task easier, although we are left with everything that runs on a piece of hardware, which remains extremely vast.

Searching for software architecture on Google reveals about 262,000 results, which is very impressive. So many results probably mean a lot of different definitions and a lack of a common understanding of what software architecture is all about. The same query on Google Images does not bring up a single diagram that could help up figure out what software architecture is.

Given the diversity of definitions, I will provide my own, although I don't claim to have the absolute truth. I will start by tying software architecture to the Architecture Tradeoff Analysis Method (ATAM), which we will see in Chapter 3, Understanding ATAM and the Software Quality Attributes. In a nutshell, ATAM consists of evaluating different quality attributes—such as performance, availability, reliability, and so on—of a piece of software. Some of these attributes are code-related, whereas some are infrastructure- or security-related.

Although there is no single definition of software architecture, one thing is absolutely certain: a software architect should be acquainted with ATAM. Another thing that appears as an emerging consensus is that the role of a software architect is tightly coupled with the actual development of an application, and I share this viewpoint. This is how Wikipedia ( defines software architecture, but for me, software architecture goes far beyond mere coding, and that is what you will find out while reading this book. Let's now look at what a software architect's job description might look like.