In general, openness scores are based on the format and licensing of the datasets, the comprehensiveness of metadata, and what download options exist.
Dimension 2.2: Online access - Download Options Score
This openness element measures whether download options are available. ODIN looks for three download options: (1) bulk download (at the indicator level), (2) API, and (3) user-select download (custom downloads). Options 2 and 3 are interchangeable for scoring purposes.
Our source for this indicator is Open Data Watch.  Scores range from 0-100.  For more details, consult the ODIN technical documentation.
This openness element measures whether download options are available. ODIN looks for three download options: (1) bulk download (at the indicator level), (2) API, and (3) user-select download (custom downloads). Options 2 and 3 are interchangeable for scoring purposes.