Method, apparatus and computer program for detecting deviations in data sources

摘要

The present disclosure describes a method and an apparatus for detecting deviations in data sources, each data source comprising a plurality of data posts, each data post comprising a number of data values. The method comprises identifying (102) data post pairs, each pair comprising a first data post in a first data source and a second data post in a second data source, wherein, for a unique matching data attribute of the first data post and the second data post in a data post pair, a subset of the data value is equal. The method further comprises determining (104) whether individual of a plurality of combinations of data values of the first data post with data values of the second data post within each of the plurality of data post pairs fulfill individual of a plurality of relation pattern algorithms, and determining (106) a conformity level for the determined fulfillment of relation pattern algorithms for the plurality of data post pairs. The method further comprises selecting (108) relation pattern algorithm from the plurality of relation pattern algorithms based on the determined conformity level, and analyzing (110) data value combinations of individual data post pairs in relation to the selected relation pattern algorithm in order to detect data value combinations of individual data post pairs that does not conform to the selected relation pattern algorithm, a non-conformance indicating (114) a possible deviation in data of the individual data post pair.