The Project performance view is a project management chart where can be understood the actual situation of the project according to the Earned Value Method.
BCWS means Budgeted Cost Work Scheduled,
BCWP means Budgeted Cost Work Performed,
ACWP means Actual Cost Work Performed.
All these are considered as effort in hours and costs.
PI are the Performance Indexes, where:
CPI is the Cost Performance Index,
SPI is the Schedule Performance Index.