Cross-Functional Coordination era
Karl Ulrich and Steven Eppinger, in their mid-1990s Product Design and Development framework, formalized product architecture and modular design as coordination technologies that align engineering, manufacturing, and marketing and enable reuse. Eric von Hippel's lead-user methodology, developed in the 1980s, provided systematic channels for capturing early market information to stabilize interfunctional decisions. Nonaka and Takeuchi's knowledge-creating company framework, introduced in the mid-1990s, anchored knowledge management practices within development teams to improve interfunctional learning and decision making. The concurrent engineering movement of the period, reinforced by these authors and others, institutionalized cross-functional teams and architecture-driven coordination to reduce cycle times.