The ultimate objective of this Recommendation is to enhance the sustainability of identified priority sectors in smart cities, in order to optimise economic, environmental and social benefits. Cities will decide on their digital transformation priorities. For example, cities might also want to encourage collaboration to deliver desired outcomes. This kind of engagement based on the assessment framework can incentivize industry engagement and investment. Content of this Recommendation are as follows: 1 Introduction of the assessment framework and its components 2 Identification of indicators - Examples of categories of indicators to assist in this objective for the assessment frameworks include: - Digital infrastructure - Digital transformation initiatives for sectors - Collaboration efforts on digital transformation - Economic, environmental and social benefits according to sector digital transformation 3 Sector assessment and analysis