Measuring objectives is the next phase in the life cycle of governance after IT governance is implemented.
The life cycle of governance is a continuous process that involves designing, implementing, evaluating, and improving the IT governance system. Measuring objectives is the phase that involves assessing and monitoring the performance and outcomes of the IT governance system against predefined metrics and targets. Measuring objectives is the next phase after IT governance is implemented because it helps to determine whether the IT governance system is effective, efficient, and aligned with the enterprise goals.13 References: COBIT 2019 Framework: Introduction and Methodology, COBIT 2019 Implementation Guide:
Implementing an Information and Technology Governance Solution

Reference https://community.mis.temple.edu/mis5203sec001sp2019/files/2019/01/COBIT-2019-Framework-Introduction-and-Methodology_res_eng_1118.pdf

The organizational structures component of the governance system are the key decision-making entities in an enterprise. Organizational structures are the arrangements of roles and responsibilities that enable the enterprise to achieve its objectives. Organizational structures can be formal or informal, hierarchical or flat, centralized or decentralized, etc. Organizational structures can include entities such as board, executive management, committees, forums, teams, units, etc. The organizational structures component of the governance system are the key decision-making entities in an enterprise by providing authority, accountability, direction, oversight, evaluation, etc., for information and technology.13 References: COBIT
2019 Framework: Introduction and Methodology, COBIT 2019 Framework: Roles, Responsibilities & RACI Charts

The alignment goal titled "Security of information, processing infrastructure and privacy" is part of the internal dimension of the IT BSC, as it relates to the protection of IT assets and information from unauthorized access, use, disclosure, modification, or destruction2, p. 20. References: 2: COBIT 2019 Framework: Governance and Management Objectives