ISO/IEC 20000-1:2018 is the certifiable standard for IT service management. Here's how it differs from ITIL, what auditors check, and a five-step path to a working SMS.
ITIL is a library of best practice. ISO 20000-1 is a certifiable management system standard. Most ISO 20000 implementations use ITIL as the operational playbook and ISO 20000-1 as the audit framework that proves the playbook is actually followed.
For managed service providers and SaaS vendors, an ISO 20000 certificate has become a shorthand answer to procurement questionnaires that previously took weeks to complete.
ISO 20000-1:2018 follows the Annex SL high-level structure shared with ISO 27001, 9001, 42001 and 22301. Clauses 4–10 cover context, leadership, planning, support, operation, performance evaluation and improvement. If you already run another Annex SL standard, you can reuse the management-system shell directly.
ISO 20000 rarely lands alone — it usually arrives alongside ISO 27001 and 9001. Running them in three separate tools triples the work for no audit benefit.
ISO-STANDARD.app ships a ready-to-adopt ISO 20000-1 workspace with the risk register, controls catalogue, policies and audit-ready exports already wired together — no spreadsheet sprawl, no consultant lock-in.
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