I1 (1.5 points)
https://knobit.org/id/task/dii-source-profiling-semantics/I1
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| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
|---|---|
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/task/dii-source-profiling-semantics/I1 |
| rdfs:label | I1 (1.5 points) en |
| schema:hasPart | dii-source-profiling-semantics I1: a log-based replica lags and is not the system of record |
| schema:hasPart | dii-source-profiling-semantics I1: archived data stays accessible |
| schema:hasPart | dii-source-profiling-semantics I1: virtualisation queries in place, a nightly copy is not virtualisation |
| schema:identifier | I1 |
| schema:position | 3 |
| schema:text | Design note, data-movement statements, 0.5 each: marked incorrect with a correction that states the concept. (a) D2: a log-based replica lags its source and is a copy, so CMS stays the system of record and fraud scoring must allow for replication lag. (b) D3: archived data moves to cheaper storage but stays accessible (a retrieval path), not removed from every access path. (c) D6: virtualisation queries the sources in place without copying them; a nightly copy is a batch load, not virtualisation (and serves day-old balances). en |