On-premises refers to IT infrastructure and software that an enterprise deploys and operates within facilities it owns or controls, rather than in a public cloud, and matters because it affects governance, compliance, cost structures, performance, and hybrid architecture strategies.
Deloitte's Chris Thomas outlines strategies for optimizing hybrid cloud adoption, emphasizing the need for robust architecture to connect cloud systems, support GenAI capabilities, and utilize holistic KPI frameworks for measuring success, ensuring organizations are equipped for digital transformation.