Work performance data is collected as part of the process for directing and managing project work. The data is an input to multiple PMI processes. That means it must be gathered in order to perform those processes. The PMBOK defines work performance data as "the raw observations and measurements identified during activities being performed to carry out the project work." Once the data is analyzed, the work performance information gained is integrated into the project.
Some of the processes which use work performance data as an input are
PMBOK Edition Confusion warning: In the 4th edition of the PMBOK, the older term for work performance data was work performance information. And in the 4th edition performance measurements was the term that is now called work performance information.
- Deep Fried Brain: PM Certification Exam Prep Blog on Work Performance Data, Work Performance Information, and Work Performance Reports by Harwinder Singh. Last Updated On Sunday, February 14, 2016.
- PM Study Circle on Work Performance Data (WPD) and Work Performance Information (WPI) by Fahad Usmani