Besides the change request form, there are other tools and techniques that can help you control and coordinate project changes. For instance, a change log records all the changes that have been requested, approved, or rejected during the project, and helps you track the status and history of each change. Additionally, a change control system defines how project changes are identified, analyzed, submitted, reviewed, approved, implemented, and monitored. Configuration management ensures that the project deliverables and documents are identified, controlled, verified, and updated throughout the project. Lastly, performance measurement compares the actual project results with the planned project baselines, and identifies any variances or deviations. All of these tools and techniques help you maintain the integrity and quality of the project outputs, and measure the impact of the changes on the project scope, schedule, budget, quality, and risks.