Data Quality: The Accuracy Dimension (The Morgan Kaufmann Series in Data Management Systems)
|
|
E
education, 77-78
educational materials, 18
element analysis, 37
defined, 37
use of, 39
empty condition rules, 165
error clustering analysis, 88-89
data elements, 89
definition of, 88
See also causes investigation
errors
data profiling, 82
deliberate, 47-48
extraction, 127
finding, 21
fixing, 21
structure, 188
ETL (extract, transform, and load)
processes, 52
products, 53
experts, 17
extraction, 58-59, 126-129
for data profiles, 126-129
into decision support systems, 232
defined, 58
denormalization and, 59
errors, 127
failure, 128
flattening and, 59
issues, too many, 129
logic verification, 127
REDEFINE and OCCURS clauses, 59, 127
routines, 59, 127
structure analysis and, 187-188
extreme values, 251-252
|
|