Design, implementation and evaluation of a digital platform for local governance participation in Brazil

Thesis Abstract

This study addresses the urban governance gap in Brazil by examining how a digitally enabled platform for local citizen participation can enhance transparency, accountability, and collaborative policy-making at the municipal level. Despite legal mandates for participatory budgeting and open data, fragmented implementation and limited user engagement hinder meaningful citizen influence on local decisions. The aim is to design, implement, and evaluate a scalable digital platform that facilitates bidirectional communication, real-time feedback, and structured participation in local governance processes across diverse municipalities in Brazil. Specific objectives are (i) to develop a platform architecture grounded in participatory governance theory and user-centered design; (ii) to implement the platform in three demographically diverse municipalities (Niterói, Belo Horizonte, and Juazeiro) as pilot sites; (iii) to assess uptake, usability, and engagement metrics among residents, civil society organizations, and local officials; (iv) to evaluate the platform’s impact on policy deliberation quality, transparency, and perceived legitimacy; and (v) to provide policy and technical recommendations for scale-up nationwide. The methodology employs a mixed-methods design combining design science research with quasi-experimental and ethnographic components. The population includes residents aged 18 and above in the three pilot municipalities, municipal staff from governance and participatory budget offices, and civil society actors engaged in local policy discourse. A sample of 1,200 residents (400 per site) will be recruited using stratified random sampling to ensure representation by age, education, and neighborhood SES; 60 municipal staff and 40 CSO representatives will be purposively selected for in-depth insight. Data collection instruments comprise (i) platform analytics logs capturing user registrations, active days, feature usage, and contribution quality; (ii) standardized usability scales (System Usability Scale) and the Technology Acceptance Model questionnaire; (iii) structured surveys measuring perceived transparency, trust, and policy impact; (iv) semi-structured interviews with officials and CSOs; and (v) a moderated workshop method for policy deliberation assessment. Validation will involve pilot testing of instruments and expert review. Data analysis will integrate quantitative and qualitative techniques. Descriptive statistics and regression analyses (multilevel models) will examine determinants of platform adoption, engagement intensity, and contribution quality, controlling for demographic and contextual factors. Difference-in-differences analysis will assess changes in perceived transparency and policy deliberation quality between platform users and non-users across time. Thematic analysis will be applied to interview transcripts and workshop outputs to identify contextual facilitators and barriers, mapped to a political science and human-computer interaction theoretical lens. A conceptual framework drawing on deliberative democracy theory (Habermas-informed communicative action) and information systems success model will guide interpretation, with the Expectation-Confirmation Theory incorporated to understand continued use. Ethical considerations include informed consent, data privacy protections aligned with LGPD requirements, and secure storage of identifiable information. Expected findings indicate that the digital platform increases the frequency and quality of resident contributions, enhances perceived responsiveness of municipal governance, and improves transparency through traceable deliberation records. Variation across municipalities is anticipated due to differential digital literacy, trust in public institutions, and prior experiences with participatory processes. The study is expected to reveal that features such as structured deliberation spaces, real-time feedback dashboards, and asynchronous voting significantly correlate with higher engagement and perceived legitimacy. However, challenges related to digital exclusion, data governance, and resource constraints for municipal follow-through are also anticipated, requiring targeted capacity-building and policy integration measures. Contributions to knowledge include (i) a transferable design and implementation blueprint for digital platform-enabled local participation adaptable to Brazilian municipal contexts, (ii) empirical evidence on the causal and correlational relationships between digital participation, deliberative quality, and governance legitimacy, and (iii) a nuanced understanding of how design features influence inclusivity and trust in government. The study informs theory by bridging deliberative democracy and information systems adoption in a real-world setting, and it offers practical guidance for national policy-makers on scaling digital public participation in Brazil. The main conclusion is that carefully designed, interoperable digital platforms can meaningfully augment local governance participation when accompanied by targeted digital literacy, robust data governance, and sustained political commitment. Recommendations include policy mandates for platform interoperability with existing e-government services, capacity-building programs for municipal teams, ongoing evaluation with embedded feedback loops, and mechanisms to address digital exclusion through community hubs and offline participation channels.