This coverage report details which OC4IDS fields are populated in your data.

If a field is on an object in an array, then coverage is reported for each object in the array. For example, in a data file with 100 projects, all of which have 5 parties, the coverage for the partiesfield will be calculated out of 100, but coverage for its child fields (like parties.id) will be calculated out of 500.

Child fields are reported in the context of their parent field. For example, in a data file with 100 projects, 10 of which set publicAuthority, coverage for the publicAuthority field will be calculated out of 100, but coverage for its child fields (like publicAuthority.id) will be calculated out of 10.

It's not expected for all fields to be used (e.g. the source system might not have the data available), or for all fields to be 100% (e.g. a new project will be less complete than a finished project).