1) The document discusses performance assessment frameworks for digital marketing campaigns of e-commerce firms. It notes that while more consumer data is available, there is lack of clarity around key performance indicators. 2) It suggests segmenting users by engagement and shopping activity levels rather than just demographics, to better tailor campaigns. Segments with low engagement and shopping should be marketed differently than high engagement/shopping segments. 3) The framework aims to justify performance indicators, measure segment efficiency, build assessment models, implement a prototype using real e-commerce data, evaluate results, and specify future agency use. Data envelopment analysis will be used to provide efficiency scores, targets, and dynamic changes across audience segments and profiles.