Opening the book…
Bottom-up design is a component-first approach where individual parts are designed separately and then assembled into a final product. This method makes prudent use of standard fasteners and purchased parts, making it ideal for projects where off-the-shelf parts are integrated with final designs.

2.1: Understanding Bottom-Up Design in CAD is shared under a CC BY-NC license and was authored, remixed, and/or curated by Alex Bahl, Western Technical College.
The book could not be loaded just now.