Ten Usability Heuristics

Good interaction design principles: Visibility of system status Match between system and real world User control and freedom Consistency and standards Error prevention Recognition rather that recall Flexibility and efficiency of use Aesthetics and minimalist design Help users recognize, diagnose, and recover from errors Help and documentation

Design Thinking

It leaves at the intersection of the following: Desirability (people) Viability (business) Feasibility (technology)