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Subject: a couple paramaters questions
I've been reviewing the latest 2.0 draft over the last two days, and I have a couple questions related to combining algorithm parameters. I should say up front that these have little to do with the mechanics of these features, and are more about some possible simplifications to the schema. I know we're up to the deadline, so a quick response (or maybe some time to discuss this at tomorrow's FG meeting) would be very appreciated! In the current draft (13), I see that both PolicySet and Policy let you specify CombinerParameters, but in both cases it's inside the choice that allows any number of parameters. Since CombinerParameters is already a container for any number of parameters, why do we need to allow more than one per Policy[Set]? I can't figure out what value this adds. Unless I'm missing something, I'd like to see only one optional CombinerParameters per Policy[Set], which not only simplifies the schema, but also the spec, since we currently explain in a number of places that having multiple CP elements just results in them being concatenated together. If we only allowed one block, then we could remove all the extra text. A related question has to do with parameters for specific Rules/Policies/PolicySets. We don't have different CombinerParameters types for policy and rule combining algorithms, but we do have different ones for policyset, policy, and rule. Why is this? The three all behave the same way and have the same contents. The only rationale I can think of is that this allows a Policy and a PolicySet to have the same identifier, but we already handle this case, in fact we're explicit about this in the text explaining how parameters for references are handled. Can someone help explain this to me? I'd like to use just one type, but I suspect there must be a reason for this naming choice... Thanks! seth
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