Welcome Back! The world of building technology stands at a pivotal inflection point. For decades, operational technology (OT) systems—from HVAC and lighting to security and access control—operated not only in isolation from information technology (IT) networks but also as siloed systems disconnected from each other. Each OT discipline typically maintained its own proprietary infrastructure, protocols, and management systems. This fragmented approach created significant inefficiencies, hindered innovation, and severely limited the potential of our built environments. Today, a powerful convergence is underway that promises to transform how we design, construct, and operate buildings. The integration of IT and OT networks creates the foundation for truly intelligent infrastructure— spaces that respond dynamically to human needs while optimizing resource utilization and enabling new capabilities previously impossible to achieve with siloed systems. This white paper reflects the collaborative insights of industry experts who understand both the transformative potential and practical challenges of IT/OT convergence. Drawing from real-world implementations across diverse environments, we offer a blueprint for organizations seeking to leverage this convergence to create more sustainable, efficient, and human-centered spaces. As you explore these insights, I encourage you to consider not just the technical architecture but the strategic outcomes that convergence enables. The future of intelligent buildings isn't just about connecting previously siloed systems—it's about creating environments that enhance human experiences, drive operational excellence, and deliver measurable business value.
Denise Lee VP, Cisco Engineering Sustainability Office and Engineering Alliances
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