Huge fan of this architecture, and have implemented several successful systems using ideas from this and Robert Martin's Clean Architecture. A subscription serv

Huge fan of this architecture, and have implemented several successful systems using ideas from this and Robert Martin's Clean Architecture. A subscription service, a payment processing service, and simple service that allowed soundcloud users to trade follows for free downloads. In the beginning it starts out feeling over-engineered, but the flexibility gained in the medium to long term quickly makes up for this.