Settlement, progress analysis, and results analysis are some of the functions available for period end closing in SAP Project System. Settlement is used to allocate the costs and revenues in projects or the results analysis data to one or more receivers, such as cost centers, profitability segments, or assets. Progress analysis is used to determine and compare the planned and actual project progress values, based on the overall planned costs and the work done. Results analysis is used to perform a periodic valuation of the project, based on the costs and revenues expected or incurred in the project. Reference: https://help.sap.com/doc/0f069b2e08b748f1b480d4c8b46c3c49/100/en-US/6a7a9f0a6e421014e10000000a174cb4.html