"Overall coherence" refers to how well something fits together or makes sense as a whole. It indicates if all the different parts or aspects of something are logically connected, consistent, and work together harmoniously. Full definition
In addition to assisting with reflective practice and better communication among faculty, curriculum mapping also helps to improve overall coherence from grade to grade, thus increasing the likelihood of students achieving program - or school - level outcomes. (thoughtco.com)
If weexamine a complete being we find that it mediates overall coherence to the parts that compose it, on which it depends to be complete at all; these parts are real in themselves but they are only ultimately intelligible in relation to the whole and in themselves their structure naturally tends towards the higher unity. (faith.org.uk)
(One) is a good rock album that likely could have been great if not for lack of a solid lead single and anything resembling overall coherence in its thematic overtones. (metacritic.com)