NBP Relevance Index – Sample Chart v0.2 (Full Size Image – 102Kb) The Relevance Metric is primarily used to compare the relevance (impact, currency and authority) of one entity relative to another, or relative to a specific stakeholder group. For example the Noteworthy BIM Publication Relevance Index (NBP-RI) compares the relevance of an NBP relative to other NBPs within and …