Scoring methods are used in investment appraisal. They have two primary purposes. Firstly they are useful where benefits are difficult to quantify objectively; secondly, they can be used to aggregate the results of multiple appraisal methods to provide an overall comparison.
The simplest form of scoring model is where a list of criteria is assessed in a binary way, i.e. they are either met or not.
However, a more accurate picture is gained by scoring each factor according to how well it meets the criteria and weighting each factor according to its importance to the organisation.
This suggests that Project A is the preferred option.