An IT steering committee is a group of senior executives who are responsible for directing, reviewing, and approving IT strategic plans, overseeing major initiatives, and allocating resources. They are the most appropriate group to approve the implementation of new technology, as they can ensure that it aligns with the organization's vision, mission, goals, and objectives. They can also evaluate the business case, risks, benefits, and alternatives of the new technology and provide guidance and support to the IT team. According to one of the web search results1, "the steering committee establishes IT priorities for the business as a whole." References := What is an IT Steering Committee? - BMC Software | Blogs

Value delivery is the best indicator of the effectiveness of IT governance in an enterprise because it measures how well IT supports the business objectives and creates value for the stakeholders. The other options are important aspects of IT governance, but they are not as comprehensive as value delivery. Reference:= ISACA, CGEIT Review Manual, 7th Edition, Chapter 1: Framework for the Governance of Enterprise IT, Section 1.2: Principles of IT Governance, p. 9.

Correctly understanding stakeholder needs for IT-related measurement is the primary consideration when designing such a measurement system, as it ensures that the system is relevant, useful, and aligned with the enterprise goals and objectives. Stakeholder needs can be identified and prioritized using various techniques, such as the goals cascade, which links stakeholder needs to enterprise goals, IT-related goals, and enabler goals1. The measurement system should also be adaptable to changes in technology and business environment, such as the movement of some data processing to a cloud solution. References := CGEIT Exam Content Outline, Domain 3, Subtopic B: Performance Measurement and Optimization, Task 1: Establish and monitor IT performance measurement systems to evaluate the extent to which IT delivers on its strategic objectives and desired outcomes.