Which of the four dimensions’ focuses on roles responsibilities and systems of authority?

Organizations and people is one of the four dimensions of service management that influence the effectiveness and efficiency of service delivery1. This dimension focuses on the roles, responsibilities, and systems of authority that are needed to deliver and support services2. This dimension also covers the culture, skills, competencies, and collaboration of the people involved in service management3. References: ITIL Foundation - ITIL 4 Edition, page 8; ITIL® 4 – A Pocket Guide, page 19; ITIL® 4 Practice Guide: Organizational Change Management, page 7.