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Nowadays there are several publications on smart cities and improvements offered to the routine of its inhabitants and resource optimization, however, there is still no agreement about the definition of "Smart Cities", their domains and indicators. The lack of a clear and widely usable definition and such as delimitation areas and indicators makes it difficult to compare or measure cities in this context. This paper compares some of the Brazilian capital indicators and presents a maturity model called br-SCMM (Brazilian Smart City Maturity Model) developed to allow extracted indicators of public databases may be used to assist city managers.

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Open Government Data (OGD) hold great promise for transforming the efficiency and effectiveness of public services through the ease of publishing and access to government public information or through the offer of new kinds of services, such as smart cities services and applications. In this work, we analyze the Brazilian OGD current scenario and the main difficulties and challenges of developing applications using that data. First, we performed a structured analysis of Brazilian OGD repositories according to OGD definitions. Then, we analyzed the development of two similar applications that use the OGD of two main Brazilian cities and were submitted to different cities' application contests and were well evaluated in both of them. Based on the analysis, this work concludes that Brazilian OGD initiatives have to resolve some issues before being considered truly open data for use in application development at large.

Government concerns about transparency date from 1957, but current technological advances and real-time worldwide communications hold great promise to transform accountability, transparency, citizen participation and collaboration, in addition to offering better public services, by increasing efficiency and effectiveness and decreasing corruption in government. With these goals in mind, this paper describes Meu Congresso Nacional (My National Congress), a first prize winner application developed during the First Brazilian Parliament Hackathon focused on parliamentarians transparency by obtaining and analyzing data from several sources and displaying them on a user-friendly website. In addition, based on this development experience, this paper discusses the difficulties and challenges of developing applications based on Brazilian government data.