Procurement has evolved over time from Procurement 1.0 to Procurement 2.0 and now Procurement 3.0. Procurement 1.0 involved basic negotiation for price reductions. Procurement 2.0 expanded the role to include category management, vendor management, and total cost of ownership. Procurement 3.0 focuses on innovation, managing external relationships with associates rather than vendors, and bringing new technologies into the business through program management and business development. The role has progressed from basic buying to strategic partnering and innovation.