Abstract: A computer apparatus and method for analyzing and improving industrial turnaround or construction project manpower estimates. The apparatus comprises one or more processors in operative communication with one or more data stores and with at least one tangible medium upon which is encoded machine-readable software, the software, upon its execution, being configured so that the system carries out a process for analyzing and adjusting manpower cost estimates, outputting actionable results for display to users, and archiving and aggregating project execution data for use in future project analyzes to improve analysis and estimation accuracy over time by feeding back into the system data indicative of the scale and sources of historical execution inefficiencies.