Details:

Management Plan: This comprehensive document outlines how the project will be executed, monitored, and controlled. It includes subsidiary plans like scope, schedule, cost, quality, risk, communication, etc.

Project Documents: Various project documents such as work breakdown structure (WBS), risk register, issue log, change log, etc., provide important information for monitoring and controlling the project.

Work Performance Data: Raw data about the project's performance collected during project execution. This could include information on scope, schedule, cost, quality, risks, etc.

Approved Change Requests: Any approved changes to the project scope, schedule, or budget need to be considered during monitoring and controlling.

Expert Judgment: Involves seeking advice from experts in relevant domains to analyze project performance and recommend corrective actions.

Data Analysis: Various data analysis techniques like trend analysis, variance analysis, earned value management (EVM), etc., help in understanding the project's performance.

Meetings: Regular project meetings with stakeholders help in discussing project progress, issues, and deciding on corrective actions.

Project Management Information Systems (PMIS): These systems help in collecting, integrating, and disseminating project information. They could include software for scheduling, budgeting, and communication.

Performance Reviews: Periodic reviews of the project's performance against the project management plan and key performance indicators (KPIs) help in identifying deviations and taking corrective actions.

Work Performance Measurements: Quantitative measurements of project performance indicators like schedule performance index (SPI), cost performance index (CPI), etc., help in assessing project health.

Work Performance Information: Summarizes the project's performance in terms of scope, schedule, cost, quality, risks, etc., and serves as a basis for decision-making.

Change Requests: Identification of changes needed to bring the project back on track or to address emerging issues.

Project Management Plan Updates: Changes to various components of the project management plan based on performance analysis and approved change requests.

Project Document Updates: Updates to project documents like the risk register, issue log, etc., based on new information or changes in project conditions.