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From Ehealthwiki

Contextual InquiryValue SpecificationDesignOperationalizationSummative EvaluationFormative EvaluationFormative EvaluationUser RequirementsPrototypingValue DriversBusiness ModelRoadmap-prototyping.png

There are several forms of prototyping available. Which type is most suitable for your project depends on the goals you want to achieve with your prototype (e.g., testing technology functionality or uncovering usability issues) and the time and money you have to your avail. One distinction that can be made is the one between high-fidelity and low-fidelity prototyping. High-fidelity prototypes have a high resemblance to the final version of the technology. They allow people to interact with the technology, are suitable for testing specific details and for usability testing. Low-fidelity prototypes do not have to resemble the final technology at all (they can even be simple paper sketches) and are suitable for communicating the goal of the technology to other stakeholders and for evaluating system usefulness and acceptance.

High-fidelity prototyping

Low-fidelity prototyping: Wireframes Storyboarding Paper prototyping Wizard-of-Oz prototyping