IT resource staffing requirements are the human resources needed to deliver IT services and support business objectives. Periodically evaluating IT resource staffing requirements is important to ensure the enterprise has sufficient resources to address changing business and IT needs, such as new projects, technologies, regulations, or customer expectations12. By assessing the current and future demand and supply of IT skills and competencies, the enterprise can identify any gaps or surpluses and plan accordingly to optimize IT performance and value34. The other options are not the primary reason for periodically evaluating IT resource staffing requirements, although they may be related or beneficial outcomes. Ascertaining the IT function has sufficient skilled staff to maintain daily operations, verifying that human resource recruitment and retention processes meet enterprise IT objectives, and confirming IT-related responsibilities are defined for the enterprise's business and IT staff are all part of the IT resource staffing management process, but they are not the main driver or purpose of it34.
3: https://www.aihr.com/blog/staffing-planning/
1:
https://www.mckinsey.com/capabilities/people-and-organizational-performance/our-insights/the-organizat
2: https://www.ccl.org/articles/leading-effectively-articles/adaptability-1-idea-3-facts-5-tips/
4: https://www.indeed.com/career-advice/career-development/staffing-plan

The aspect of information governance that best enables an enterprise to avoid duplication of records and promote consistency of data is data modeling. Data modeling is the process of creating and maintaining a logical representation of the data structures, relationships, and constraints that exist in an enterprise's data sources, such as databases, applications, or systems. Data modeling can help ensure that the data is accurate, complete, and standardized across the enterprise, as well as facilitate the integration, analysis, and sharing of data. Data modeling can also help improve the data quality, security, and governance, as well as support the business processes and decisions that rely on data. What is Data Modeling? Definition & Best Practices provides an overview of data modeling and its benefits.

According to the web search results, the customer dimension of an IT balanced scorecard is the perspective that measures how well the IT department meets the needs and expectations of its internal and external customers, such as business units, end users, suppliers, and partners. The customer dimension helps the IT department to align its services and products with the customer requirements and preferences, and to deliver value and satisfaction to the customers12.
The most important measure to include in the customer dimension of an IT balanced scorecard is stakeholder satisfaction, which is the degree to which the customers are satisfied with the quality, performance, and outcomes of the IT services and products. Stakeholder satisfaction reflects the customer perception and feedback of the IT department, and influences the customer loyalty, retention, and advocacy. Stakeholder satisfaction can be measured by various methods, such as surveys, interviews, focus groups, complaints, compliments, and referrals34.
The other options are not as important as stakeholder satisfaction to include in the customer dimension of an IT balanced scorecard. Business value creation is a measure that belongs to the financial dimension of an IT balanced scorecard, as it evaluates how much value the IT department contributes to the business strategy and objectives5. Maintenance of IT operations is a measure that belongs to the internal process dimension of an IT balanced scorecard, as it assesses how well the IT department manages and improves its core processes and activities. Support for corporate customers is a measure that belongs to the learning and growth dimension of an IT balanced scorecard, as it indicates how well the IT department develops and enhances its capabilities and competencies to support its customers.
References: 1: The customer perspective within the Balanced Scorecard3 2: The Balanced Scorecard Customer Perspective2 3: Customer Satisfaction: A Guide for Measuring Customer Satisfaction - Qualtrics4 4: How to Measure Customer Satisfaction: Do You Overlook these 4 Key Customer Satisfaction Measurements? | Qualtrics 5: The financial perspective within the Balanced Scorecard : The internal process perspective within the Balanced Scorecard : The learning & growth perspective within the Balanced Scorecard

Establishing the objectives and expected benefits is the most important step when developing effective metrics for the measurement of solution delivery, because it defines the purpose, scope, and value of the solution and how it aligns with the business goals and needs. By establishing the objectives and expected benefits, IT leaders can identify the key performance indicators (KPIs) that will measure the progress, quality, and outcomes of the solution delivery. KPIs are specific, measurable, achievable, relevant, and time-bound metrics that track and evaluate the performance of the solution delivery against the objectives and expected benefits.
KPIs can also help IT leaders to communicate the value proposition of the solution to the stakeholders, monitor and manage the risks and issues that may affect the solution delivery, and ensure that the solution meets or exceeds the expectations of the customers and users. := Automation: metrics that measure success, 4 Types of Key Performance Metrics To Track (With Examples), A guide to measuring benefits effectively

IT maturity models measure the capabilities of an IT organization, which means the ability to perform certain activities or tasks effectively and efficiently. IT maturity models assess the current state of the IT organization in terms of people, processes, and technology, and compare it with the desired or optimal state. IT maturity models also help to identify the gaps and opportunities for improvement, and to prioritize and plan the actions to achieve higher levels of maturity. IT maturity models can be used for various purposes, such as benchmarking, strategic planning, performance management, risk management, and quality assurance.
References: CGEIT Exam Content Outline | ISACA1, CGEIT Review Manual (Digital Version), Use an IT maturity model - IBM Garage Practices1, IT Maturity Models, Scorecards & Assessments | Smartsheet2