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

Connascence of Meaning

We have Connascence of Meaning (CoM), or convention, when two or more components must agree on the meaning of specific values, hence using a convention. This kind of connascence is not considered strong, but it is particularly annoying because it's quite common, easy to fix, and can become really tedious in debugging mode.

Let's suppose we are writing a simple web page for a survey about how people come to work. We might need a checkbox that looks similar to this:

<input type='checkbox' name='transport' value='1' />
I travel by bike <br />
<input type='checkbox' name='transport' value='2' />
I travel by car <br />
<input type='checkbox' name='transport' value='3' />
I travel by train <br />
<input type='checkbox' name='transport' value='4' />
I travel by bus <br />

And in our...