What has been supported by advocates of professional project work for years has now become a reality in the daily routines of many employees and managers: highly project-oriented work structures. Consequently, professionalised project management competence is becoming increasingly vital to business success. Following the five project management phases of DIN 69901:2009 and supplemented by chapters on cross-phase competencies and agile methods, this book offers a clear and professionally sound presentation of the modernised ICB 4.0 framework (effective from January 1, 2024). Its structured content, illustrated by a consistent project example, not only guides readers but also ensures they are well-prepared to meet the IPMA ICB 4.0