Construction projects today must be realized with high quality, involving numerous stakeholders, within a short timeframe and with limited financial resources. This book not only provides the necessary foundational understanding but also comprehensive information and practical assistance. It primarily explains the specifications and performance descriptions that occur in the construction and real estate industry in detail. This includes project management, project control, and project monitoring on the client side, as well as object, specialist, and general planning, along with various forms of company engagement in construction execution on the contractor side. In the new edition, all essential regulations and work aids have been updated accordingly.