Discoverability makes it easier to understand where to perform actions.The insights from the seven stages of action lead us to seven fundamental principles of design ( Baterbee): Is this okay? Have I accomplished my goal?.What are the alternative action sequences?.Norman described these challenges as the “gulf of evaluation” and the “gulf of execution” because, in order for the users to achieve their goals without barriers, there must be effective design elements. Execution : Taking action to accomplish a specific goal.Evaluation : Understanding the system state.He outlines them in the seminal book “Design of Every day Things” (Good summary of the book by Zhiyang.)ĭesign principles are aimed at helping designers find ways to enhance usability, influence perception, increase appeal, teach users, and make sound design decisions during projects.ĭesign principles are a compass that helps you make design decisions throughout your projects.Īnd in order to successfully interact with technology, the users must overcome these two challenges: Intuitively we all know when something is broken, things that just don’t work and cause frustrations when you use or experience them.ĭon Norman is the doyen of good design and his 7 design principles are reference cornerstone.
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