Record response score reduction level rather than discreet target score so that Waterfall chart is easier to manage

Managing the response target scores is challenging when actions close earlier than expected, all subsequent target score need adjusting to take account of the fact that the scores are out of sync.

Example: If we close an action earlier, it breaks the waterfall chart, and introduces a jump up in the waterfall. You have to go and re-evaluate all your actions, change the due dates and their target scores which is very time consuming.

Instead of setting a target risk score for an action if there was the ability to say this action reduces the risk score lets say by 5 rather than reducing it from 25 to 20, it would be more productive as the sequence of actions would be less dependent on their order with respect to the waterfall chart outputs.

It would probably also be easier to manage like this too.

This would of course only be possible in the case where responses are not fully assessed with probability and impact ratings, but instead simply by entering a number into the response target score field.

Original Active Risk ID: ARM-I-36