This book integrates of Building Information Modeling (BIM) and Decision Support Systems (DSS) in the field of building design, construction, and maintenance. The book explores how BIM and DSS technologies can be synergistically utilized to enhance performance, comfort, and maintenance efficiency in buildings. With an emphasis on practical applications, the book provides a comprehensive overview of the latest advancements in BIM and DSS, including real-world case studies and implementation guidelines. The book features illustrations, tables, and examples that aid in understanding complex concepts and demonstrate the practical application of BIM and DSS in building projects. Readers will gain a deep understanding of how BIM and DSS can be integrated to optimize building design, streamline construction processes, and improve facility management and maintenance. The main benefit of reading this book is that it provides a valuable resource for professionals in the architecture, engineering, and construction industries who want to leverage the power of BIM and DSS to enhance their building projects. Additionally, the book explores how BIM and DSS can contribute to energy efficiency.