A prototype is an early sample or model built to test a concept or process or to act as a thing to be replicated or learned from. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. wikipedia.org

Axure RP Pro is a wireframing, rapid prototyping, and specification software tool aimed at web and desktop applications. It offers capabilities typically found in diagramming tools like drag and drop placement, resizing, and formatting of widgets. wikipedia.org

Interaction design, often abbreviated IxD, is the practice of designing interactive digital products, environments, systems, and services. wikipedia.org

"Invision is prototyping, collaboration & workflow platform."

Information architecture (IA) is the art of expressing a model or concept of information used in activities that require explicit details of complex systems. Among these activities are library systems, Content Management Systems, web development, user interactions, database development, wikipedia.org

User experience design (UXD or UED) is the process of enhancing customer satisfaction and loyalty by improving the usability, ease of use, and pleasure provided in the interaction between the customer and the product. wikipedia.org

Graphic design is a creative process - most often involving a client and a designer and usually completed in conjunction with producers of form (i.e., printers, signmakers, etc.) _ undertaken in order to convey a specific message (or messages) to a targeted audience. wikipedia.org