The project is structured in seven closely inter-related work packages (see Figure 1). Aside from the general management (WP1) and dissemination (WP7) packages, the project includes three work packages to test the potential data quality improvements obtained by using new measurement opportunities: voice input (WP2), visual data capture (WP3), and “in-the-moment” surveys (WP4). In addition, it includes a theoretical work package that corresponds to the construction of a framework on both when/how to replace or combine metered and (mobile) web data (WP5) and a more applied work package dedicated to illustrating how the framework can be used to answer key applied research questions (WP6).