1. A method for generating a three-dimensional (3D) assembly on-demand in a product lifecycle management (PLM) system, the method comprising: electronically creating and storing a plurality of instance objects in the PLM system based on total positioning information calculated from extracted data from a computer-aided-design (CAD) environment; electronically mapping the plurality of instance objects to corresponding function information in the PLM system; electronically receiving, via a network portal, user input regarding a selection of one or more functions representing product information from the PLM system; and, subsequently electronically generating the 3D assembly on-demand based on the mapped instance objects to the function information and the user regarding the selection of the one or more functions, wherein the 3D assembly includes the function information in the PLM system such that a user can access the function information directly via the 3D assembly.