Low-fidelity visual schematics conveying basic structure and behaviour without detailed interface or visual design.
The "Product" is the website, service, application, or interactive thing being worked on. Similar to UX Design, combining multiple design disciplines.
The design and organisation of content, pages, and data into a structure that aids user understanding and task completion.
Multiple design disciplines combined improving usability, responsiveness, uptake, and aesthetics of products and services.
The conduit between human-computer interaction enabling users to control machines and receive feedback.