Quality Assurance will conduct a review during each phase 
of the project activities, to ensure that applicable 
processes, procedures, and standards are followed and have 
been planned.

Quality Assurance will focus on the work products and the 
processes used to create them given their critical 
importance to the project success, and will also verify 
that applicable standards, procedures and policies are 
satisfied and that the appropriate organizational processes 
and procedures have been followed.


Quality Control techniques are to be employed to build in 
quality to all project activities and work products:
•	Formal Audits by the QA, 
•	Workshops i.e. with clients or other SE groups etc,
•	 Desk checking of all outputs by the individuals 
producing outputs,
•	 Informal Inspections,
•	 Formal Walkthrough i.e. Technical design, code etc 
(internal and/or external),
•	 Formal Reviews…

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

Quality control is finding defects where as quality 
assurance is to find the root cause analysis and to prevent 
the defetcs from rehappening