Multi-variate types of scorecard values

We have a need for a non-binary element of our scorecard. The example in this case is the length of an agreement. In our experience a shorter contract is a good indicator of account health. Would be good to have options for 1,2,3,4, and 5 year terms and have those each get weighted accordingly. A 5 year contract gets the full weighted value and a 1 year contract gets the least weighted and possibly a zero. Also we find that relationships are key to our success. If we have a low level manager as our key contact we are at