A method of managing consent using a computing device, the consent is given by a subject to one or more events in one or more studies, wherein the consent and the plurality of activities are changeable, the method including: authoring one or more first data forms describing the one or more events and one or more selections responsive to the one or more events; authoring, for each of the plurality of subjects, one or more second data forms including description of a plurality of preferences; forming, for a first of the plurality of subjects, an Informed Consent Forms document by combining the one or more first data forms of a first of the one or more studies and one or more second data forms for the first subject; and generating a manifest indicating the one or more events in the first study to which the first subject has granted consent.