This document discusses intelligent building management systems (IBMS). It defines IBMS and outlines their key components and architecture. An IBMS centrally monitors and controls building systems like HVAC, lighting, security, and more. The document lists benefits of IBMS such as energy savings, cost reductions, improved safety and security, and increased tenant comfort. It also discusses some common issues with intelligent buildings, such as perceived high costs but also evidence they improve efficiency and are attractive to tenants.