The original on-premises, limited, legacy commerce suites and platforms are being reborn, creating open architecture to allow commerce businesses to implement only and exactly what they need to power their businesses. A third model, commerce components, is reinventing the industry. Digital business pros should use these updated models to move toward more open and flexible solutions. In this report, we define the new categories for modern technology solutions according to how businesses choose to engage with their providers, rather than what the providers are.