Learning Cairngorm 3, Part II: Starting from a blueprint

January 27, 2011

The requirements of my app are simple. It needs to be beautifully coded per Cairngorm 3 standards, it needs to support deep linking, it needs to support localization and unit testing. It does not need to be in any way useful.

What it will be is a simple online casino with two games: Guess a number from 1 to 10, and Flip a coin. The odds are stacked against you, but you get $1000 virtual dollars for free just by signing up. Nothing will be charged to any credit card, and there’s no way to actually withdraw money. It is idiotic  by design, but it should do the trick. Here’s my quick and dirty wireframe which I’ll be basing the application on:


The next step is to translate this into a code architecture. First off, a Cairngorm 3 application has four Architectural Layers:

  • Presentation – presents data to the user and gathers input. i.e. the fancy UI
  • Application – performs the operations of the application. i.e. saving a form
  • Domain – models the business concerns of the application. i.e. the form data
  • Infrastructure – coordinates objects and integrates with other systems. i.e. talking to the server

I’ll start by mirroring the insync-basic structure and create my “sharkys_casino” project like so:

Next up, I’m going to try to figure out my classes, and see if I can’t apply this document to my design.

Applying the Presentation Model: Componentized vs. Hierarchical

But that’s enough for one night…


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