Methodology · v2.5

PLTProduct Longevity

Guaranteed OS + security-update support window for {legal_name}'s flagship product line (years). EXTRACTION RULES: Extract the declared years of OS + security-patch support from the official EOL / support-lifecycle page. If multiple product lines have different terms, use the median across the flagship lines. Cite the company support / EOL page + at least one independent lifecycle tracker (ENDOFLIFE.date / GSMA / hardware lifecycle wiki / Wikipedia hardware-support table). Return exact_numerical{value: <support_years>, unit: "years", source_urls: [...]}. Server applies ratio_band (<3→30, 3-5→60, 5-7→80, 7+→95) — DO NOT compute any 0-100 score.