Production and Industrial Facilities - INSPIRE - Europa

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INSPIRE Reference: D2.8.III.8_v2.0(.0) TWG-PF Data Specification on Production and Industrial Facilities 2011-06-15 Page LIV IR Requirement 11 The Gregorian Calendar shall be used for as a reference system for date values, and the Universal Time Coordinated (UTC) or the local time including the time zone as an offset from UTC shall be used as a reference system for time values. 6.3 Theme-specific requirements and recommendations on reference systems There are no theme-specific requirements or recommendations on reference systems. 7 Data quality This chapter includes a description of data quality elements and sub-elements as well as the associated data quality measures (section 7.1). The selected data quality measures should be used to evaluate quality of data sets for a specific data quality element / sub-element. The evaluation can be performed at the level of spatial object, spatial object type, dataset or dataset series. The results of the evaluation are then reported at the spatial object type or dataset level in metadata utilising the same data quality elements and measures (see chapter 8). NOTE The selection of appropriate data quality measures represents the first step towards the harmonisation of documenting data quality. In addition, for some of the data quality elements described in section 7.1, minimum data quality requirements or recommendations may be defined. These are described in the section 1.2. Recommendation 1 If data quality information is required at spatial object level then it should be modelled in the data model as an attribute of a relevant spatial object type. 7.1 Data quality elements and measures No data quality elements for quantitative evaluation are defined for this theme. Recommendation 2 To evaluate and report the data quality of data sets related to the spatial data theme Production and Industrial Facilities, the elements and measures listed in Table 2 should be used. Table 2 – Data quality elements for evaluating and reporting the data quality of data sets related to the spatial data theme Production and Industrial Facilities Section Data quality element and sub-element 7.1.1 Completeness – Commission 7.1.2 Completeness – Omission
INSPIRE Reference: D2.8.III.8_v2.0(.0) TWG-PF Data Specification on Production and Industrial Facilities 7.1.3 Logical Consistency – Topological consistency 7.1.5 Positional accuracy – Absolute or external accuracy 7.1.6 Thematic accuracy – 7.1.1 Completeness – Commission Commission should be documented using the rate of excess items. 2011-06-15 Page LV Name Rate of excess items Alternative name – Data quality element Completeness Data quality sub-element Commission Data quality basic measure Error rate Definition Number of excess items in the dataset in relation to the number of items that should have been present. Description - Evaluation scope data set Reporting scope data set Parameter – Data quality value type Real, percentage, ratio (example: 0,0189 ; 98,11% ; 11:582) Data quality value structure – Source reference – Example Only entities directly related with Production and Industrial Facilities as is described on the scope should be included on the Dataset. Other entities closely related could be included on the provided Datasets. Measure identifier 3 (ISO 19138) 7.1.2 Completeness – Omission Omission should be documented using the rate of missing items. Name Rate of missing items Alternative name – Data quality element Completeness Data quality sub-element Omission Data quality basic measure Error rate Definition Number of missing items in the dataset in relation to the number of items that should have been present. Description - Evaluation scope data set Reporting scope data set Parameter – Data quality value type Real, percentage, ratio (example: 0,0189 ; 98,11% ; 11:582) Data quality value structure – Source reference – Example Potential data sources can be focus on a wider scope than the geographical one or the real geo-referenced entities are not tested. These elements should be avoided.
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