![]() If the prototype can readily be distinguished from the service, then fidelity is low. To the extent that a person using the prototype cannot distinguish it from the final system, the prototype is high fidelity. The gold standard for a prototype is to develop a high fidelity prototype that passes for what I like to refer to as the Design Turing Test (DTT).Īlthough we do not yet have a specific means for determining the particular characteristics that make a user interface high or low fidelity, we can loosely define fidelity by analogy to the Turing test. An excellent article by Laura Busche in 2014 captures the idea of prototyping fidelity and illustrates why developing a low fidelity prototyping is the first step in user-oriented design. Prototype fidelity is a clean, easy to understand concept. I like the concept of prototype fidelity as discussed by Catani and Biers much better than the levels of prototyping. The concept of adaptive design was articulated by Peter Keen over 35 years ago and defined as a process of learning and evolution. A prototype built using adaptive design was an actual working systems that was improved forever in an adaptive iterative process. Level 3 prototyping was called adaptive design. Level 2 prototyping was called heuristic design and it involved the addition of functional operations and limited interactions to input and output design. In earlier papers we identified three levels of prototyping. I would like to draw on the concept of prototype fidelity and relate it to our earlier research. This coarseness is called prototype fidelity. One of the most important concepts is related to the coarseness of the prototype. Numerous conceptual advance have been made to redefine and assist with modeling and designing systems for consumers and users. Prototyping facilitates the mutual and concurrent learning processes of users and designers.Prototyping encourages user involvement and joint ownership of projects.Prototyping technologies and conceptual advances have changed dramatically over the years, but the two reasons we must prototype have not, and will never change. Prototyping is a topic I have been involved with for 30 years.
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