What document describes how various processes will be synchronized throughout the project lifecycle?

The document that describes how various processes will be synchronized throughout the project lifecycle is the integration management plan. This plan ensures that all aspects of the project are coordinated and aligned with its objectives, providing a framework for managing and integrating various project components. Tasks such as planning, executing, and monitoring the project are addressed, emphasizing the importance of aligning individual project activities with the overarching goals.

In the context of the other options, while the risk management plan focuses on identifying and mitigating potential risks, the communication plan details how information will be disseminated among stakeholders. The quality management plan outlines the processes for ensuring project deliverables meet the required standards, but it does not address the broader integration of various project processes. Hence, the integration management plan is pivotal for ensuring that all project elements work together seamlessly throughout the lifecycle.