1. A computer-implemented data processing method for efficiently conducting privacy risk assessments for a plurality of privacy campaigns, the method comprising, for each of the plurality of privacy campaigns: presenting, by one or more processors, a threshold privacy assessment to a user that includes a first set of one or more questions for a first plurality of question/answer pairings that identify one or more privacy characteristics of a particular privacy campaign; receiving, by one or more processors, respective answers for the first plurality of question/answer pairings regarding the one or more privacy characteristics of the particular privacy campaign; determining, by one or more processors, a privacy risk score for the particular privacy campaign that identifies a level of risk for one or more of the privacy characteristics indicated in the question/answer pairings; comparing, by one or more processors, the privacy risk score to a threshold privacy risk value, the threshold privacy risk value indicating a pre-determined level of risk regarding the one or more privacy characteristics of the particular privacy campaign; determining, by one or more processors, whether the privacy risk score exceeds the threshold privacy risk value; in response to determining that the privacy risk score exceeds the threshold privacy risk value, providing, by one or more processors, a privacy impact assessment to the user that includes a second set of questions for a second plurality of question/answer pairings that identify one or more privacy characteristics of the particular privacy campaign, the second set of one or more questions including one or more questions that are different from questions within the first set of one or more questions; and in response to determining that the privacy risk score does not exceed the threshold privacy risk value, storing, by one or more processors, an indication that the particular privacy campaign is a low privacy risk campaign.