1. A computer-implemented data processing method for automatically generating an inventory of personal data stored by a particular organization, the data processing method comprising, for each of a plurality of particular privacy campaigns: presenting, on one or more computer user interfaces, a plurality of prompts for the input of data mapping data related to the particular privacy campaign; electronically receiving the data mapping data via input by one or more users, wherein the data mapping data comprises: a descriptor of the particular campaign; one or more types of personal data to be acquired or used during the campaign; information indicating one or more locations in computer memory where the personal data is to be stored; and information identifying one or more individuals who will have access to the personal data; processing the data mapping data by electronically associating the data mapping data with a record for the particular privacy campaign; and digitally storing, in memory, the data mapping data associated with the record for the particular campaign, wherein the computer-implemented data processing method further comprises: receiving, via a user interface, a request to generate an inventory of personal data for the particular organization; and in response to receiving the request, generating the requested inventory of personal data for the particular organization, wherein: the requested inventory comprises the data mapping data for each of the plurality of particular privacy campaigns.