Bill Of Materials
Introduction
A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts, and the quantities of each needed to manufacture an end product.—Wikipedia, Bill of Materials
The BOM, CAD, and build instructions are the Holy Triumvirate of open source design. These are the 3 critical aspects of design - see Meta Design Guide for a longer explanation.