30 Min
Design Principles help build a shared team vision for a solution. They are rules and constraints that help teams decide what to do, and what not to do as they move towards a solution.
Defining design principles can be challenging. It is not easy to agree on what must and must not be done. Principles may be too idealistic and open ended, or too constrained. A team must be prepared to iterate on principles as new data and learnings emerge (especially after user testing).