Dissemination (dissemination channels, assurance of statistical confidentiality including statistical disclosure control)

3.5. Measures to ensure cost effectiveness

(1) The reporting for section 2 must be comprehensive and free of overlaps in the sense that it is possible to allocate each topic to exactly one data source.

(2) For data sources that result from a record linkage, the list comprises information on the new data source and on all original data sources from which the new data source has been derived.

ANNEX II

Quality-related data and metadata

The quality-related data and metadata about the data sources and topics comprise the items listed below.

1. RELEVANCE

1.1. Adequacy of data sources

Member States have to report on the adequacy of the data sources, in particular on the impact of any major deviation from the essential features of population and housing censuses and/or from the required definitions and concepts where this seriously impairs the adequate usage of the transmitted data.

1.2. Completeness

The following data have to be provided for

— all geographical areas at the following levels: national level, NUTS 1, NUTS 2,

— all hypercubes(1) and all primary marginal distributions(1):

(1) number of all special cell values ‘not available’

(2) number of special cell values ‘not available’ flagged as ‘unreliable’

(3) number of special cell values ‘not available’ flagged as ‘confidential’

(4) number of numerical cell values flagged as ‘unreliable’

2. ACCURACY

The following information:

— has to be provided for each data source (section 2.1.) and each topic (section 2.2.), referring to person counts(2) and

— may be provided for data sources (section 2.1.) and topics (section 2.2.), referring to counts of statistical units other than persons (optional)

2.1. Data sources

(3)

The data as required under point 2.1.1. have to be provided for all geographical areas at the following levels: national level, NUTS 1, NUTS 2. The explanatory metadata as required under point 2.1.2. have to be provided for the national level.

2.1.1. Data

(1) Census population: absolute value and percentage of the estimated target population;

(2) Estimated target population(4): absolute value;

(3) Under-coverage (estimated): absolute value and percentage of the census population;

(4) Over-coverage (estimated): absolute value and percentage of the census population;