What Comes First, User Experience or Software Architecture?

Do you architect the system (Database, Services, etc.) first and then build the user experience for your end user clients (Mobile Apps, Web Apps)? Or Are you the kind of engineer that design the user experience first and let it drive the rest of system? We talk about advantages and disadvantages of both!


We are using Instagram as a use case in our analysis.

Enjoy
Stay Awesome
Hussein Nasser 
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