It's a complaint-based process. First you have to identify the group. What's the female-predominant group you are talking about? It can be a long discussion. Then where are the male comparators? Another long discussion about that. Then how do you value? So that's the SERWC. That's why sometimes we go to court and we have experts, two experts, three opinions. You get an expert saying that SERWC means this and another who says that SERWC means that. It's not mathematical. A judgment needs to be brought into this.
At some point you come to a conclusion on the value of work, but at every step there's room to interpret, to make representations, and then a judgment needs to come down. Either a third party or the parties themselves agree, and one is able to convince the other, and in the end you have a result that way.