"Oracle clients should be able to extract a list of exchanges (and presumably access protocols) from the blockchain state, which they can use to figure out prices.
In the first version, this list should be manually editable by whoever has access to the Kowala governance keys, but eventually it should be more directly controlled by the oracles themselves via a voting system."
Per @yourheropaul ,
"Oracle clients should be able to extract a list of exchanges (and presumably access protocols) from the blockchain state, which they can use to figure out prices.
In the first version, this list should be manually editable by whoever has access to the Kowala governance keys, but eventually it should be more directly controlled by the oracles themselves via a voting system."