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Variable prefixes

The idea of variable prefixes

The idea of prefixes on variable is “very” old. They are used to tell the developer what kind of variable he is using. The first prefix for example is m_ and the conclusion is this variable is a member. When I learned programming we had to give the developer more information in case of a member. Like the type of it like an integer became m_i. Continue reading

Code Quality! Building code you won’t curse tomorrow.

These are the slides and comments of a presentation I held for bbv Software services AG.

The presentation is about how we get quality into our code.

Buzzwords: Fokus, frequent measurements, strong team, clean code, pair programming, test driven development, acceptance tests, continuous integration, collective code ownership, team learning.


Urs Enzler
Senior Software Architect
bbv Software Services AG

urs.enzler _at_ bbv.ch  (replace _at_ with @)

Copyright © 2010 bbv Software Services AG


How to get quality into source code – that’s the question I’ll try to answer in this document.

You’ll see what we do at bbv Software Services to get code that is built with inherent quality and why it is important to think about quality throughout the whole development process.

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Clean Code Developer

Yesterday, I found an interesting page (in German) describing some of the most important patterns and practices in software development: http://www.clean-code-developer.de/

Although I’m not a fan of wrist bands (see the linked page to see for yourself), I like the page for its short description of patterns and practices like:

  • Don’t repeat yourself
  • keep it simple stupid
  • single responsibility pattern
  • separation of concerns
  • interface segregation principle
  • dependency injection principle
  • Liskov substitution principle
  • open close principle
  • law of Demeter
  • principle of least astonishment
  • you ain’t gonna need it
  • use a version control system
  • issue tracking
  • continuous integration
  • automated tests
  • mocking
  • code coverage
  • test first
  • reviews
  • and some more

Continue reading