Which is a requirement of Improvement Reviews?

Improvement Reviews are essential components of the continual improvement process, as they help assess the effectiveness of improvements and determine whether they are providing the anticipated value. Documented progress and value through metrics is crucial because it allows organizations to quantitatively evaluate the benefits realized from their improvement initiatives. These metrics facilitate informed decision-making, ensuring that teams can analyze the outcomes of their actions, learn from successes or shortcomings, and make necessary adjustments for future improvements.

By focusing on documented metrics, organizations are able to establish a clear record of what has been accomplished, which can be used to communicate progress to stakeholders and justify continued investment in improvement efforts. This data-driven approach underpins the iterative nature of continual improvement within the ITIL framework, encouraging a culture of transparency and accountability.

The other options, while they may have their own merits, do not represent the fundamental requirements of Improvement Reviews in the same way that documented metrics do.