Which document captures insights for future project performance?

The lessons learned documentation is crucial for capturing insights gained throughout the project's lifecycle, which can be beneficial for future projects. This document typically includes a summary of what went well, what did not go as planned, challenges faced, and how those challenges were addressed. By systematically recording these insights, organizations can identify best practices and avoid repeating mistakes in future projects. This continuous improvement aspect is essential in project management, allowing teams to evolve and enhance their processes over time.

The other documents mentioned serve different purposes: the project scope statement outlines the project's objectives and deliverables, the stakeholder engagement plan focuses on managing communications and relationships with stakeholders, and the project charter formally authorizes the project and defines its goals. While these documents are important in their own right, they do not specifically capture insights and reflections aimed at improving future project performance like lessons learned documentation does.