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12 Factor Apps

Web application design and architecture has undergone drastic changes in the past decade. With the ubiquity of an 'app for every type of service', how apps are built has evolved to meet modern requirements. There is an excellent guideline on designing apps in such a way that meets these demands and provides robustness for future support and developement. This guideline is called The 12 Factor App.

A 12 Factor App

  • Uses declarative formats for setup automation, to minimize time and cost for new developers joining the project;
  • Has a clean contract with the underlying operating system, offering maximum portability between execution environments;
  • Is suitable for deployment on modern cloud platforms, obviating the need for servers and systems administration;
  • Minimizes divergence between development and production, enabling continuous deployment for maximum agility;
  • scales without significant changes to tooling, architecture, or development practices.

We recommend reading through the guidelines layed out at You may find some of the 'factors' are fairly common sense while others will (hopefully) become an aha! moment

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