RAND’s Portfolio Analysis Tool (PAT): Theory, Methods, and Reference Manual

This report is a reference manual and user’s guide for RAND’s Portfolio Analysis Tool (PAT), a spreadsheet-based software application for facilitating decisions dealing with uncertainty and different perspectives. PAT generates summary depictions to address issues of balance, using a spreadsheet-based format. PAT assists high-level decisionmakers in framing their thinking about balance, constructing good multifaceted options, and making choices.