This stakeholder interaction manual was prepared in the ERA4CS project: Citizen Sensing - Urban climate resilience through a Participatory Risk Management System(PRMS). The Participatory Risk Management System includes an app by which end-users upload reports (weather observations, eventual impacts, level of personal comfort accompanied by comments and/or images) and a spatial-temporal visualization platform (the CitizenSensing web-portal) that allows users to view, explore and analyze the reports (see Navarra et al. 2020). The aim of the manual is to guide stakeholder interactions within the project to assess and gain deeper insight into the perceptions, priorities and reflections of stakeholders2 that were involved in the co-design process and organize the end-user3 campaigns.

The “Getting Started” section contains general information about participants, workshops, aims, outcomes, preparations, equipment, opening and closing workshops and communication. The following sections contain participatory exercises that could be performed with stakeholders and/or end-users to inform and guide the co-design process of CitizenSensing researchers and municipal through the set-up, testing and assessment of the PRMS. The exercises are organized under a number of workshops4. These would be performed with several participants, but the same exercises could be performed at or smaller meetings with a few people or individuals.

• The workshop sections contain a number of interactive exercises that cover a number of themes: Climate-related issues and project pre-conditions (Workshop 1A)
• Risks, sensitive groups and locations and climate-related variables (Workshop 1B)
• Sensor networks, databases and municipal tasks (Workshop 2A)
• App requirements, critical levels and recommendations (Workshop 2B)
• Assessing possibilities for measurement/observation campaigns (Workshop 3)
• Designing the end-user campaigns (Workshop 4)
• Preparing the end-user campaigns (Workshop 5)
• Initiating the end-user campaigns (Workshop 6)
• Concluding the end-user campaigns (Workshop 7).
• Assessing stakeholder perspectives: Workshop (Workshop 8)
• Assessing stakeholder perspectives: Interviews

Appendices I and II contain pre-campaign and post-campaign surveys to be conducted at Workshops 4 and 5. Appendix III contains an interview guide that could be used in Workshops 8 or 9. Appendix IV contains a guide to exploring the web-portal that could be used in Workshops 8 or 9.