Book Image

arc42 by Example

By : Dr. Gernot Starke, Michael Simons, Stefan Zörner, Ralf D. Müller
Book Image

arc42 by Example

By: Dr. Gernot Starke, Michael Simons, Stefan Zörner, Ralf D. Müller

Overview of this book

When developers document the architecture of their systems, they often invent their own specific ways of articulating structures, designs, concepts, and decisions. What they need is a template that enables simple and efficient software architecture documentation. arc42 by Example shows how it's done through several real-world examples. Each example in the book, whether it is a chess engine, a huge CRM system, or a cool web system, starts with a brief description of the problem domain and the quality requirements. Then, you'll discover the system context with all the external interfaces. You'll dive into an overview of the solution strategy to implement the building blocks and runtime scenarios. The later chapters also explain various cross-cutting concerns and how they affect other aspects of a program.
Table of Contents (9 chapters)
Free Chapter
1
Acknowledgements
8
VII - macOS Menu Bar Application

II.8 Crosscutting Concepts

One should explain crosscutting and the ubiquitous rules of the system. arc42 calls them concepts: they often affect multiple building blocks and are relevant in several parts of the system and its implementation. Examples include rules for the usage of technologies and/or frameworks and implementation rules, and the design or architecture patterns that are used.

8.1 Domain Model

The following diagram shows a domain model:

Figure 2.20: Domain checking model

The properties of the implementation classes are private since we manipulate them via getter/setter methods.

The following table describes every component of the domain model:

Figure 2.21: Description of the terms in the HTML domain checking model

8.2 Structure of HTML Links

For many web developers or HTML experts, the following information on URI syntax might be completely evident. We wrote this book for different kinds of people, so we included this information just in case.

HtmlSC performs...