For Harvard specifically, a significant amount of information about its admissions process has been revealed by the Blum/SFFA lawsuit: https://docs.justia.com/cases/federal/district-courts/massachusetts/madce/1:2014cv14176/165519/420
Basically:
- First reader assigns an overall score, and subscores for academic, extracurricular, athletic, personal, recommendations. May request additional review by docket chair. (docket is geographical area)
- Subcommittee (of 3-6 area representatives and docket chair) reviews applications to decide whether to send to the full committee.
- Full committee (of about 40) makes admission decisions from the finalists.