Difference between Quality control and Quality Assurance?
Answer Posted / veena
Quality Control (QC) is a system of routine technical
activities, to measure and control the quality
of the inventory as it is being developed.
The QC system is designed to:
(i) Provide routine and consistent checks to ensure data
integrity, correctness, and
completeness;
(ii) Identify and address errors and omissions;
(iii) Document and archive inventory material and record all
QC activities.
QC activities include general methods such as accuracy
checks on data acquisition and calculations and the use of
approved standardised procedures for emission calculations,
measurements, estimating uncertainties, archiving
information and reporting. Higher tier QC
activities include technical reviews of source categories,
activity and emission factor data, and
methods.
Quality Assurance (QA) activities include a planned system
of review procedures conducted by personnel not directly
involved in the inventory compilation/development process.
Reviews, preferably by independent third parties, should be
performed upon a finalised inventory following the
implementation of QC procedures. Reviews verify that data
quality objectives were met, ensure that the inventory
represents the best possible estimates of emissions and
sinks given the current state of scientific knowledge and
data available, and support the effectiveness of the QC
programme
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