ISO 20700:2017 — Management consultancy services
The standard governing how a consulting engagement is scoped, contracted, delivered and closed. It is specific to management consultancy rather than to quality systems generally.
ISO 9001:2015 — Quality management systems
The quality management standard applied to the practice's research, authorship and review process.
What certification means in practice
Accreditation governs how the practice runs: how an engagement is scoped, how the work is controlled, and how it is closed. It is the discipline behind every mandate Projectzo accepts, and it is audited rather than asserted.