Forecasting method is a technique used in generating performance reports. Forecasting is the process of estimating or predicting in unknown situations. Forecasting is about predicting the future as accurately as possible with the help of all the information available, including historical data and knowledge of any future events that might impact forecasts. The forecasting methods are categorized as follows: Time series method: It uses historical data as the basis for estimating future outcomes. Causal/econometric method: This forecasting method is based on the assumption that it is possible to identify some factors that might influence the variable that is being forecasted. If the causes are understood, projections of the influencing variables can be made and used in the forecast. Judgmental method: Judgmental forecasting methods incorporate intuitive judgments, opinions, and subjective probability estimates. Other methods: Other methods may include probabilistic forecasting, simulation, and ensemble forecasting. It is one of the tools and techniques of the report performance process.

Answer option A is incorrect. Work performance information is the data gathered on the status of the project schedule activities that are performed to accomplish the project work. This data is collected as part of the Direct and Manage Project Execution processes. WPI includes the following: Deliverables status Schedule Progress Costs incurred It is used as an input in generating the report performance process.

Answer option C is incorrect. Work performance measurements are created from the work performance information. WPMs are an output of Control schedule, Control cost, and Control scope processes, which are monitoring and controlling processes. WPMs consist of planned versus actual performance indicators with respect to scope, schedule, and cost. They are documented and communicated to the stakeholders and are used to make project activity metrics, such as the following: Planned vs. Actual Technical performance and Scope performance Planned vs. Actual Schedule performance Planned vs. Actual Cost performance They are used as an input in generating the report performance process.

Answer option B is incorrect. Change requests are requests to expand or reduce the project scope, modify policies, processes, plans, or procedures, modify costs or budgets or revise schedules. These requests for a change can be direct or indirect, externally or internally initiated, and legally or contractually imposed or optional. A Project Manager needs to ensure that only formally documented requested changes are processed and only approved change requests are implemented. It is an output of the report performance process.