A prototype is an early, working model of a product or system that is used to test and validate ideas, gather user feedback, and explore design options before full-scale development. In software development, a prototype might be a simple version of an application with limited functionality, created to demonstrate core concepts or to experiment with different user interfaces. Prototyping is an essential step in the iterative design process, allowing developers and stakeholders to visualize and refine ideas, identify potential issues, and ensure that the final product meets user needs and expectations.

Prototypes can vary in fidelity, ranging from low-fidelity sketches or wireframes to high-fidelity interactive models that closely resemble the final product. The choice of prototype fidelity depends on the project’s goals, timeline, and resources. Low-fidelity prototypes are quick and inexpensive to create, making them ideal for early-stage exploration and brainstorming. High-fidelity prototypes, on the other hand, provide a more accurate representation of the user experience and are often used for usability testing and stakeholder presentations. Prototyping helps reduce risk, improve communication, and ensure that the development process is aligned with the project’s objectives.