Waldo: Serviço para Publicação e Descoberta de Produtores de Dados para Middleware de Cidades Inteligentes [Waldo: Data Producers Registry and Discovery Service for Smart Cities Middleware]

Through simulations, it is attested the feasibility of Waldo as a solution for publishing and discovery of heterogeneous data producers and follows the Service-Oriented Computing paradigm and adopts NoSQL database solutions and SensorML specification.