Any categorizations used to tag analyses or outputs. For example, a “Type of analysis” categorization could be created to tag defined analyses or outputs as “Subject Population”, “Safety” or “Efficacy”, and/or an “Estimand Analysis Type” categorization could be created to tag analyses as “Primary Estimator”, “Sensitivity Analysis”, “Supplementary Analysis”. Each categorization is defined using the “AnalysisCategorization” class.