“Completeness – Features are absent and some features that are included seem to have erroneous attributes and relationships. I suspect that as the reporting goes on, we will find they Apple has not only omissions in their data, but also errors of commission where the same feature is represented more than once (usually due to duplication by multiple data providers).
Logical Consistency – the degree of adherence to logical rules of data structure, attribution and relationships. There are a number of sins included here, but the ones that appear to be most vexing to Apple are compliance to the rules of conceptual schema and the correctness of the topological characteristics of a data set. An example of this could be having a store’s name, street number and street name correct, but mapping it in the wrong place (town).
Positional Accuracy – is considered the closeness of a coordinate value to values accepted as being true.
Temporal Accuracy – particularly in respect to temporal validity – are the features that they map still in existence today?
Thematic Accuracy – particularly in respect to non-quantitative attribute correctness and classification correctness.”