Principles
Principles exist at the most abstract level. They represent shared understandings about what constitutes good professional practice. Because they are general, they require interpretation when applied to specific situations. This interpretation is the domain of standards, guidelines, and professional judgment.
Examples: integrity, transparency, competence, accountability.
Standards
Standards occupy the middle layer. They take the abstract commitments expressed by principles and operationalise them into criteria that can be observed, measured, or audited. A standard may address multiple principles simultaneously and typically includes specific requirements, procedures, or benchmarks.
Examples: ISO 9001 (quality management), ISO 27001 (information security), SIA norms (Swiss construction), IFRS (financial reporting).
Certifications
Certifications are the most concrete layer. They represent a third-party verification that specific standards have been met. The value of a certification depends on the rigour of the assessment process, the credibility of the certifying body, and the relevance of the underlying standard to the context in question.
Examples: ISO certification (issued by accredited certification bodies), board certifications in medicine, professional accreditations in engineering or law.
How They Relate
The three layers form a hierarchy of increasing specificity:
- Principles define values and commitments (abstract, general).
- Standards translate principles into assessable requirements (specific, documented).
- Certifications attest to compliance with standards (formal, verified).
Each layer depends on the one above it for legitimacy. A certification is only as meaningful as the standard it assesses. A standard is only as relevant as the principles it operationalises. Conversely, principles without standards remain aspirational, and standards without certification mechanisms lack external verification.
Applied Guides
In addition to these three layers, applied guides serve a distinct function. An applied guide interprets principles (and sometimes standards) for a specific context—such as an industry, geography, or audience. Applied guides may introduce their own methodology, editorial perspective, and selection criteria. They are not standards or certifications, but contextualised reference works.
Applied guides may reference upstream principles as part of their methodology, but they operate independently and bear their own editorial responsibility.
Common Confusions
- Principles are not standards. A commitment to "transparency" is a principle. A requirement to "publish annual financial reports in accordance with IFRS" is a standard. The principle motivates the standard, but they are not the same thing.
- Standards are not certifications. An organisation may comply with a standard without being certified. Certification adds external verification but does not change the underlying requirements.
- Certification does not guarantee excellence. Certification attests to compliance with specific criteria at a specific point in time. It does not address aspects of practice not covered by the standard, nor does it guarantee ongoing compliance between assessments.
- Absence of certification does not indicate poor practice. Many competent practitioners and organisations operate without formal certification, particularly in fields where certification infrastructure is limited or where the relevant standards are emerging.