setbased

Setbased, or set-based design (SBD), is an approach in product development and systems engineering that keeps multiple feasible options in play during early phases rather than selecting a single design early. The core idea is to explore a family of potential solutions, gradually narrowing the design space as new information becomes available, with decisions deferred until the later stages.

Originating from lean product development and set-based concurrent engineering practices in the automotive industry, the method emphasizes cross-functional collaboration, modular architectures, and design space mapping. Teams create design envelopes or alternative architectures, and use prototypes, simulations, and other learning vehicles to compare performance, manufacturability, and cost.

Process and methods involve exploration of design space, creation of coarse models, parallel development of compatible subsystems, and frequent decision gates. The aim is to converge on a robust solution with broad compatibility, while maintaining interfaces and standards that allow different options to be mixed and matched later.

Benefits include reduced late-stage redesign, improved integration across subsystems, and increased adaptability to changing requirements. It can enhance risk management and support innovation by avoiding premature commitments.

Challenges encompass the need for more upfront coordination, discipline to manage a larger information set, potential for slower early momentum, and a cultural shift toward delayed decision-making.

See also: set-based design, concurrent engineering, lean product development, design space exploration.