C2 (2 points)
https://knobit.org/id/task/dm-logical-integrity/C2
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| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
|---|---|
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/task/dm-logical-integrity/C2 |
| rdfs:label | C2 (2 points) en |
| schema:hasPart | dm-logical-integrity C2: dependencies lost by the routing split and by the answer's own split |
| schema:identifier | C2 |
| schema:position | 2 |
| schema:text | Dependencies lost in a decomposition, 1 each: (a) the v0.3 split of Payment Route into Correspondent Bank and Clearing Channel Correspondent no longer enforces BR-112 (settlement currency and clearing channel determine one correspondent); nothing stops two EUR correspondents on the same channel. The answer names that dependency and records it as a data rule with an enforcement (application or dq-check), or reverts to the 3NF entity with a waiver; (b) the answer's own split of Customer Advisor Assignment (C1) likewise loses BR-110 (customer and advice area determine one advisor), and that dependency is recorded the same way. If the answer keeps Customer Advisor Assignment in 3NF with a waiver, (b) is satisfied by the waiver. en |