Background: I'm in the process of writing guidelines for use within the company. These guidelines list all sorts of possible solutions to a given problem, and each of them are rated according either to its difficulty or to its efficacy, or both.
Question: What's the best way to show these values?
Current solution: I'm currently using two systems: a 3-stars system for the efficacy, and a 0-to-100 gauge for the difficulty. They are both color-coded: green when good for the company, red when bad.
I've looked at sites like ui-patterns.com but sadly nothing comes close to what I'm looking for.
Do any of you have any insight on what's considered best practice here?