I'm about to design a software to be implemented by several developers.
The software has many complex use cases involving several steps and commands from the UI. I want to have a clear separation from the UI and the Bussiness logic, so, the different states of each use case should not be driven/controlled by the UI but in a lower layer, making the UI essentially 'dumb'.
I've considered a mixture between DCI and State patterns to solve this.
I would like to know your experience with similar applications and, if possible, receive your advice.
Thank you!