Explanation: Implementing a review and approval process for each phase would best help to improve an enterprise’s ability to manage large IT investment projects. This is because a review and approval process can help to ensure that the project is aligned with the business objectives, scope, budget, schedule, quality, and risk criteria at each stage of the project life cycle. A review and approval process can also help to monitor the project progress, performance, and deliverables, as well as identify and resolve any issues or changes that may arise. A review and approval process can also provide transparency, accountability, and governance for the project stakeholders and decision-makers.
Creating a change management board is not the best answer, as it is only one aspect of a review and approval process. A change management board is a group of people who are responsible for reviewing, approving, or rejecting change requests that affect the project scope, schedule, cost, or quality. A change management board is important for managing changes in a project, but it is not sufficient or comprehensive for managing large IT investment projects.
Reviewing and evaluating existing business cases is not the best answer, as it is only a preliminary step in a review and approval process. A business case is a document that provides the justification and rationale for initiating a project, based on the expected costs, benefits, risks, and value of the project. Reviewing and evaluating existing business cases can help to select and prioritize the most viable and valuable projects for the enterprise, but it is not enough or relevant for managing large IT investment projects.
Publishing the IT approval process online for wider scrutiny is not the best answer, as it is only a communication method for a review and approval process. Publishing the IT approval process online can help to increase the visibility, awareness, and understanding of the project requirements, criteria, and procedures among the project stakeholders and participants. Publishing the IT approval process online can also help to solicit feedback, suggestions, or concerns from the wider audience. However, publishing the IT approval process online does not necessarily improve the enterprise’s ability to manage large IT investment projects.
References := IT Portfolio Management Strategies | Smartsheet, Managing an IT portfolio requires four steps section. Best Practices in Project Management | Smartsheet, Establish ground rules for how the project will move forward section. Government of Canada project management - Canada.ca, These practices include establishing clear accountabilities section. IT Project Management: Concepts, Solutions & Best Practices, What is Integrated Project Management (IPM)? section. 16 Industry Experts Share Best Practices For IT Project Management - Forbes, 1. Limit Work In Progress section.