Higher demands placed on the security, flexibility and convenience of electrical installations combined with the need to minimize energy requirements have led to the development of home and building management systems. The KNX technology is the result of the pooling of knowledge and experience gained over the last 35 years with the predecessor technologies to KNX, i.e., the European Installation Bus (EIB), the European Home System (EHS) and BatiBUS. The skilful application of KNX requires sound knowledge of all persons involved. Training measures are therefore required towards: Selection of bus devices and installation material; - fields of application and main applications of the KNX bus system; - selection of the bus topology in view of the construction of the building and the desired functionalities; - planning of the to be installed bus system; - Installation, thereby taking into account the relevant regulations (e.g., lightning protection, electromagnetic compatibility, etc.); - Commissioning and servicing of KNX installations. The October 2025 edition of the KNX Tutor Course Documentation gives you an in-depth overview of topics such as Microcontrollers, Serial Data Transmission, Requirements for KNX training centres… In-depth information about System arguments, Bus devices, KNX Topology… can be found in the document “KNX Basic Course Documentation” which is published separately. This Basic Course Documentation (with successful concluding exam) is the basis for KNX Partnership. Courses are organised by more than 500 certified training centres around the world. You can find a complete list of the KNX certified training centres on https://www.knx.org/knx-en/for-professionals/community/training-centres/. In writing this training documentation, we would especially want to thank our training centres for their ongoing competence and commitment. Joost Demarest CTO KNX Association