Gegevenskwaliteitverbetering

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Eigenschappen

BeschrijvingHet verbeteren van de kwaliteit van een gegevensverzameling door duplicaten te detecteren en samen te voegen, ontbrekende gegevens aan te vullen en foutieve records te verwijderen (cleansing).
Externe informatiehttp://en.wikipedia.org/wiki/Data_quality

Relaties

VertrekpuntRelatieEindpunten
GegevenskwaliteitverbeteringSpecialiseert

Afgeleide relaties

VertrekpuntRelatieEindpunt
Datadistributiesysteem (Node)RealiseertGegevenskwaliteitverbetering
Gegevenskwaliteitsysteem (Applicatiecomponent)RealiseertGegevenskwaliteitverbetering

Data are of high quality "if they are fit for their intended uses in operations, decision making and planning" (J. M. Juran). Alternatively, the data are deemed of high quality if they correctly represent the real-world construct to which they refer. Furthermore, apart from these definitions, as data volume increases, the question of internal consistency within data becomes paramount, regardless of fitness for use for any external purpose, e.g. a person's age and birth date may conflict within different parts of a database. The first views can often be in disagreement, even about the same set of data used for the same purpose.

(bron: WikiPedia)
Property "Citaat" (as page type) with input value "Data are of high quality "if they are fit for their intended uses in operations, decision making and planning" (J. M. Juran). Alternatively, the data are deemed of high quality if they correctly represent the real-world construct to which they refer. Furthermore, apart from these definitions, as data volume increases, the question of internal consistency within data becomes paramount, regardless of fitness for use for any external purpose, e.g. a person's age and birth date may conflict within different parts of a database. The first views can often be in disagreement, even about the same set of data used for the same purpose.
(bron
WikiPedia)" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

Data cleansing or data scrubbing is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database. Used mainly in databases, the term refers to identifying incomplete, incorrect, inaccurate, irrelevant etc. parts of the data and then replacing, modifying or deleting this dirty data.

After cleansing, a data set will be consistent with other similar data sets in the system. The inconsistencies detected or removed may have been originally caused by different data dictionary definitions of similar entities in different stores, may have been caused by user entry errors, or may have been corrupted in transmission or storage.

(bron: WikiPedia)
Property "Citaat" (as page type) with input value "Data cleansing or data scrubbing is the process of detecting and correcting (or removing) corrupt or inaccurate records from a record set, table, or database. Used mainly in databases, the term refers to identifying incomplete, incorrect, inaccurate, irrelevant etc. parts of the data and then replacing, modifying or deleting this dirty data.

After cleansing, a data set will be consistent with other similar data sets in the system. The inconsistencies detected or removed may have been originally caused by different data dictionary definitions of similar entities in different stores, may have been caused by user entry errors, or may have been corrupted in transmission or storage.

(bron
WikiPedia)" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

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