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 - Machine Readability Score
This openness element measures whether data are made available in machine readable formats. Machine readable file formats allow users to easily process data using a computer. Common machine readable formats include XLS, XLSX, CSV, and JSON files.
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 data are made available in machine readable formats. Machine readable file formats allow users to easily process data using a computer. Common machine readable formats include XLS, XLSX, CSV, and JSON files.