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At
the meeting of international organisations of 25 January 2002 in Luxembourg,
it was agreed that each organisation would invite two or three of its Member
States to produce a paper assessing the quality of the Joint Oil Data Exercise
for their particular country. The objective of this action is to
pass on national methods and standards of evaluating quality used by countries
more experienced in this field to those seeking guidance
In
order to obtain papers that make reference to specific areas of interest
as well as to obtain experience on common issues at a national level, it
was agreed to establish a list of topics that national papers would be
invited to cover.
Structure
of national papers
Some of the issues to which national
papers should refer to are listed here.
Emphasis
should be given to points1 and 2a.
1. Description of the process
-
flow
of information
-
data
sources/suppliers
-
means
of data communication
-
resources
required
-
use
of information at national level
-
interaction
with other processes (monthly or quarterly oil statistics)
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2. Quality assessment
Reference should be made to the
following quality criteria (see Eurostat quality paper):
a. Accuracy
- time
series’ revisions (comparison of m-2 to m-1 provided
the month before)
- comparisons
with other relevant monthly or quarterly data
- questionnaire
consistency check (production + imports – exports +/- stock
change for up/down data)
- relative
importance (%) of estimated data to actual/collected data
- description
of estimation methods
- identification
and description of possible data errors (by category if possible)
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b. Timeliness
c. Accessibility and clarity of
information
d. Comparability and coherence
of statistics
e. Completeness/coverage
f.
Description of other national data quality control methods and proposals
for improving data availability and quality at national level.
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