Explanation
The enterprise roles and organizational structures component is important to update in a COBIT RACI chart to align with the enterprise's context, priorities and preferred terminology. A RACI chart is a tool that assigns different levels of responsibility, accountability, consultation, and information to roles and organizational structures for each governance and management objective. A RACI chart consists of four components:
enterprise roles and organizational structures, governance and management objectives, enterprise process practices and activities, and RACI assignments. The enterprise roles and organizational structures component should be updated to reflect the specific roles and structures that exist in the enterprise, as well as their names and descriptions.13 References: COBIT 2019 Framework: Introduction and Methodology, COBIT 2019 Framework: Roles, Responsibilities & RACI Charts

Business service continuity and availability is one of the 17 enterprise goals defined in COBIT 2019, which describe the outcomes that an enterprise wants to achieve from its use of information and technology. This goal relates to ensuring that critical business processes and information are available at a level acceptable to the enterprise in the event of a disruption or disaster, and that recovery plans are in place to restore normal operations as soon as possible. The goal is based on the COBIT 2019 Framework3, page 36. References: 3:
COBIT 2019 Framework | Digital | English

The number of confidentiality incidents causing financial loss, business disruption or public embarrassment would be the best metric to enable an enterprise to evaluate an alignment goal specifically related to security of information and privacy. A metric is a quantifiable measure that is used to track and assess the status of a specific process or activity. An alignment goal is an intermediate goal that links the enterprise goals with the governance and management objectives. Security of information and privacy is one of the 17 generic alignment goals defined by COBIT that describes how information and technology can support the protection of sensitive information and personal data. The number of confidentiality incidents causing financial loss, business disruption or public embarrassment is a metric that reflects how well this alignment goal is achieved.
12 References: COBIT 2019 Framework: Introduction and Methodology, COBIT 2019 Framework:
Governance System

Explanation/Reference: https://www.bauer.uh.edu/parks/cobit_4.1.pdf (98)