The document discusses open government data (OGD), its importance, challenges, and the value it can create in terms of economic growth, social participation, and public governance. It highlights various measures for assessing the status of OGD in OECD countries and emphasizes the need for a supportive ecosystem involving stakeholders for successful implementation. Additionally, it identifies key challenges in OGD initiatives and outlines opportunities for action for Supreme Audit Institutions (SAIs) in promoting good governance through data transparency and public engagement.