What does the term "sketch" refer to in technical documentation?

In the context of technical documentation, the term "sketch" refers to a draft of a design. This usually encompasses preliminary drawings or diagrams that visually represent concepts, ideas, or the layout of a project. Sketches serve as a foundational tool for designers and engineers to convey their vision before more detailed plans or iterations are created. The informal nature of a sketch allows for quick adjustments and brainstorming, making it an essential part of the design process.

In contrast, a detailed report represents comprehensive documentation of findings or research, a mathematical formula provides explicit mathematical relationships, and a user manual serves to instruct users on how to operate or utilize a product, none of which align with the broad, initial representation of ideas encapsulated in a sketch.