Implementing Descriptor-Driven Navigation Architecture (DDNA) in Modular iOS Applications

In modern iOS applications, navigation is no longer a simple transition between screens. Users can enter an app through multiple entry points such as push notifications, universal links, marketing campaigns, and in-app actions. As applications grow larger and more modular, navigation logic often becomes fragmented and difficult to maintain. In many codebases, navigation begins with something simple like: navigationController?.pushViewController(DetailsViewController(), animated: true) While this works for small applications, large mobile systems quickly run into problems: tight coupling between feature modules inconsistent deep link handling navigation logic spread across many controllers poor testability To address these challenges, I use an architectural approach called Descriptor-Driven Navigation Architecture (DDNA) . DDNA separates navigation intent from navigation implementation, allowing applications to scale navigation logic cleanly across modules. What is Descriptor-Driven Nav