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Sitecore Helix Distilled

It seems like a lot of Sitecore developers struggle with Helix, finding it more of a hindrance than a benefit. Perhaps Sitecore have been too prescriptive in their documentation. Maybe the Habitat example site overwhelms people. Whatever the reasons, I don't think it needs to be that way.

If you distill Helix down to its essence, you'll find a collection of 6 architectural principles that were originally codified by Robert C Martin. They're known as the 'Principles of Package and Component Design' and they're not too difficult to grasp. That said, the language he uses can get pretty complex. So here's my attempt to translate the principles for new Helix developers.

Coupling The first 3 principles focus on managing dependencies within your system. Broadly speaking, they help you decide which Helix layer your code should be added to.

Stable Foundation / Volatile ProjectEvery Foundation module will probably have lots of dependent Feature/Project modules. As a …
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