What is the consequence of having a decline in relevance rate towards zero?

A decline in the relevance rate towards zero indicates that very few responsive documents are found during the review process. The relevance rate is a measure of how many documents reviewed are deemed relevant to the specific search criteria or query. As this rate approaches zero, it suggests that the majority of documents being reviewed do not match the criteria, which typically means that the pool of responsive documents is dwindling.

In practical terms, when the relevance rate is low, reviewers are likely sifting through a large volume of documents that are mostly irrelevant. This can signal the need to reassess the search parameters or the overall approach to the review process, as the likelihood of uncovering additional responsive documents decreases significantly.

Thus, a relevance rate nearing zero serves as an important indicator in document review workflows, prompting teams to consider refining their strategies to enhance the efficiency and effectiveness of their review process.