A number of criteria to assess indicators’ quality and adequacy are commonly used to provide guidelines for their selection, such as: Specific, Measurable, Achievable, Relevant and Time-bound (SMART); Relevant, Accepted, Credible, Easy, Robust (RACER); and Clear, Relevant, Economic, Adequate and Monitorable (CREAM) (European Commission, 2017). Inspired by these criteria and by the discussions within the OECD Water Governance Initiative, some key characteristics for water governance indicators have been identified, such as: be relevant (according to the purpose of the measurement); be participative (in their development); be practical (in the production and collection considering resources and time constraints), and be realistic (in terms of how they will be used) (Figure 2.3). Guiding questions are reported in Table 2.3. Suggestions by pilot testers helped to improve the indicator framework and refine the language.