摘要:This paper presents a model to diagnose maturity and capabilities of Public Agencies (PAs) in pursuing the open data principles and practices. The open data maturity model, called OD-MM, was piloted in ten PAs from three Latin American countries, validating in this way the web tool that operationalizes the model. This web tool is a valuable diagnostic tool for PA's, since it shows all weaknesses and provides the instrument (a roadmap) to progress in the implementation of open data. We also propose a guide to implement open data in PAs. This guide is the result of the OD-MM application in Latin American PAs. The guide is simple and orients decision makers so that PAs following the actions of the guide can see their improved capacities when facing a diagnosis of their institutional maturity in the implementation of open data.