I3 (1.5 points)
https://knobit.org/id/task/dq-strategy/I3
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| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
|---|---|
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/task/dq-strategy/I3 |
| rdfs:label | I3 (1.5 points) en |
| schema:hasPart | dq-strategy I3a: dimensions defined once from a published framework |
| schema:hasPart | dq-strategy I3b: completeness-only rules extended with uniqueness and consistency for the goals |
| schema:hasPart | dq-strategy I3c: day-on-day alert replaced by statistical process control |
| schema:identifier | I3 |
| schema:position | 6 |
| schema:text | Measurement, 0.5 each. (a) Dimensions 'defined by each data team, as it needs' with no source are defined once for the bank from a published framework (DAMA UK core dimensions, DMBOK2, ISO/IEC 25012 or Strong and Wang), by the DMO or the council. (b) Rule types 'completeness only in year one' cannot check the goals: at least uniqueness (one customer record per depositor, D-02) and consistency (arrears status against days past due, F 18.00 flags against default and forbearance events) are added. (c) The control 'alert whenever a day's pass rate is lower than the day before' reacts to ordinary variation: it is replaced by statistical process control - a control chart with a mean and control limits taken from the measure's own history, a point outside the limits or a run signalling a special cause to investigate. en |