Theory.- Breakdown of Project Objective.- Partial Comparison.- to Terminology.- Total Comparison.- Comparison Typology.- Correction for Cost, Price, and Working-Time Index.- Mathematical Issues of Partial Comparisons.- Application.- 177 Projects as an Example.- Collecting, Keeping, and Processing Data.- Total Comparison of all 177 Projects.- Utilization.- Presenting Comparison Results.- Application Issues.- Specialized Prognosis Methods for some Base-Goals.- A Software Tool for Simple Project Comparisons.- Approaching Success Characteristics.