34. How is quality assured in a certification
system?
The certification process requires total transparency. Therefore,
it is supported by quality assurance mechanisms oriented to ensure
that the procedures used for certification are carried out in
compliance with administrative and technical methodological guidelines
devised for such purpose.(1)
Both the certifying body and the assessment centre have quality
assurance systems. The assessment centre has to guarantee the
existence of internal verification mechanisms in order to make
sure that the assessment is carried out according to the established
procedures and guidelines and therefore obtain impartial, transparent
and objective results.
The assessment centre(2)
must have an internal verifier in order to check the consistency
of the procedures that are being used, give advice to assessors
about the assessment process and create the necessary conditions
to handle the information related to assessments.
A certifying body is in charge of external verification of
the assessment centre. In order to do this, it uses information
from internal verification and it also checks the assessment
practices used, it provides consultancy to assessors and keeps
registers of performed assessments. In this relationship, the
feedback that the certifying body gives to the assessment centre
is fundamental.
The internal verifier of assessment centres must control:
Assessment practices.
Assessment plans.
Portfolios of evidence.
The external verifiers role involves:
Producing a diagnosis of the assessment centre.
Producing and implementing an external verification.
Producing a report on non-conformances.
If non-conformances are found during the verification process,
the certifying body will give consultancy services and support
to the assessment centre with the purpose of discovering and neutralising
the causes of this situation.
In Mexico, people who use this assessment are certified by
a technical standard of labour competency, this implies a quality
stamp in their performance.

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1 CONOCER, op. cit
2 Although we talk about assessment centre, standards
also allow the recognition of independent assessors.