At some point, perhaps Big Data can provide us with better performance information. This information could include emails, messages, documents, conversations, meeting notes, location data in terms of interactions, and so on. Would this be better than a single rater distilling 2080 hours of performance into a single number of set of numbers?

At some point, perhaps Big Data can provide us with better performance information. This information could include emails, messages, documents, conversations, meeting notes, location data in terms of interactions, and so on. Would this be better than a single rater distilling 2080 hours of performance into a single number of set of numbers?