True or false:The performance indices Cost Performance Index(CPI) &Schedule Performance Index(SPI) should NOT be used alongside Critical Path Analysis?

True. the critical path analysis is used during the planning phase of the project as a step of determining the time and cost of the project, while the performance indices (CPI and SPI ) are used to determine the project performance during the project monitoring and controlling and measured to the scope and cost baselines that determined in advance at project planning processes as a result of the critical path analysis. ETC, EAC, VAC and TCPI should be used alongside with performance indices.