Exploring dimensions influencing the usage of Open Government Data portals

Governments are considered as one of the major producers of data. Opening up and publishing this Big Government Data in national portals have significant impact on fostering innovation, improving transparency, public accountability and collaboration. Thus, the expected benefits are hindered by several factors that influence the usage of Open Government Data portals, exploring and investigating these factors is the first step to propose an evaluation approach for OGD portals and promote their usage. In this work, we identified a set of evaluation dimensions that affect OGD portal's usage and fulfillment of users' needs and requirements. According to the identified dimensions, we propose an evaluation of two national OGD portals