Which ITIL concept includes governance, practices, and continual improvement?

The ITIL Service Value System (SVS) is the core architectural concept in ITIL 4 that describes how all components and activities of an organization work together as a system to enable value co-creation. The SVS explicitly includes five key components: the ITIL guiding principles, governance, the service value chain, practices, and continual improvement. These elements are integrated to provide a strong, unified, and value-focused direction for the organization. Therefore, the SVS is the comprehensive ITIL concept that encompasses all the items listed in the question.

B. 'Deliver' and 'support' are two of the six activities within the service value chain, which is only one component of the broader ITIL Service Value System.

C. 'Focus on value' is one of the seven ITIL guiding principles, which are a component of the SVS but not the entire system itself.

D. The 'value streams and processes' dimension is one of the four dimensions of service management, which are a lens for viewing the SVS, not the SVS itself.

1. AXELOS. (2019). ITIL® 4 Foundation, ITIL 4 Edition. TSO (The Stationery Office). Section 4.1, "ITIL service value system," pp. 38-39. The text and accompanying Figure 4.1 clearly show governance, practices, and continual improvement as components of the SVS.

2. Tan, W. G., et al. (2021). A Framework for IT Governance in the Public Sector Based on ITIL 4. 2021 International Conference on IT, Information Systems and Digital Age (ICITISDA). DOI: 10.1109/ICITISDA54249.2021.9716388. This paper discusses the SVS, stating, "The ITIL SVS consists of five core components: the ITIL service value chain, the ITIL practices, the ITIL guiding principles, governance, and continual improvement."