Component design

This week I gave a presentation titled “Component design: Getting cohesion and coupling right” at Wikimedia Deutschland.


Components are a level of organization, in between classes and layers. They are an
important mechanism in avoiding monolithic designs and big balls of mud. While
everyone can recognize a component when they see one, many people are unaware of
the basic principles that guide good component design.

This presentation is aimed at developers. It is suitable both for people new to the field
and those with many years of experience.

The topics covered include:

  • What is a component?
  • Which things go together?
  • How do components relate to each other?
  • How are common problems avoided?

You can view the slides, or look at the source.

slides-1-benefits slides-2-questions slides-3-adp slides-4-cat

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