Enable varying the weights inside a browser. Since we have no "truth values" to compare against, we've had to estimate weights using expertise, and people can always question that. A solution that Gartner uses is to say "if you don't like our weights, here's a tool that lets you select your own weights."

The D3.js library (https://d3js.org/) might be perfect for this - it'd make it easy to visualize what changes with weight changes. With modern browsers we should be able to dump and process the entire dataset in a browser without problems.