Book Image

Agile Technical Practices Distilled

By : Pedro M. Santos, Marco Consolaro, Alessandro Di Gioia
Book Image

Agile Technical Practices Distilled

By: Pedro M. Santos, Marco Consolaro, Alessandro Di Gioia

Overview of this book

The number of popular technical practices has grown exponentially in the last few years. Learning the common fundamental software development practices can help you become a better programmer. This book uses the term Agile as a wide umbrella and covers Agile principles and practices, as well as most methodologies associated with it. You’ll begin by discovering how driver-navigator, chess clock, and other techniques used in the pair programming approach introduce discipline while writing code. You’ll then learn to safely change the design of your code using refactoring. While learning these techniques, you’ll also explore various best practices to write efficient tests. The concluding chapters of the book delve deep into the SOLID principles - the five design principles that you can use to make your software more understandable, flexible and maintainable. By the end of the book, you will have discovered new ideas for improving your software design skills, the relationship within your team, and the way your business works.
Table of Contents (31 chapters)
Free Chapter
Section 1
Section 2
Section 3
Section 4
Chapter 21
License: CyberDojo


Coupling measures the degree of interdependence between software components. In object-oriented design, we want coupling to be as low as possible, but not lower, or we end up with software that does very little. This allows us to make changes in a component without impacting other components.

Coupling is an indication of the independence among the components. Some indicators of possible high coupling are the following code smells:

  • Divergent Change
  • Feature Envy
  • Inappropriate Intimacy
  • Message Chains
  • Middleman
  • Shotgun Surgery

When we talk about components in object-oriented design, we are referring to libraries, programs, packages/namespaces/modules, classes, methods, and so on.

The types of coupling categorize how we connect components and how much one component knows about other component(s).

Types of Coupling

There are two main categories of coupling that create interdependence for very different reasons:

  • Interaction Coupling...