frequent flyer status-earning metric

generate a one-sentence description for a given conceptual class.
# Response Format
Return only the sentence: "Description: [one-sentence description of the conceptional class]"

Class: frequent flyer status-earning metric

A frequent flyer status-earning metric is a quantified measure (such as miles, segments, or points) that tracks a traveler’s progress toward achieving or maintaining elite status in an airline loyalty program.