Final answer:
Designers use wireframes to create blueprints that show different aspects of a program and user navigation. These are a crucial part of the design process, establishing the design architecture.
Step-by-step explanation:
Designers use wireframes, which serve as blueprints of different aspects of the program, also illustrating how a user navigates from one area of the program to another.
Wireframes are a pivotal part of the design architecture, representing the functional elements and physical building blocks of the product design. They are developed after initial concept sketches and are more technical and detailed, helping the team to prototype, test, and refine the design through multiple iterations.
This is an essential step in the development of products ranging from building layouts to new jet engines, where the appearance, structure, and material specifics are laid out.