Index
A
Absorb relations, 339
Abstract datatypes, 121
Abstraction. See Collapsing
Abstractness, guidelines for, 274–276
Active voice, 202
Aggregate independent entities, 107, 110–111
“Aha” reaction, 88
Airline schedule, exercise for, 365–366
Allowed and disallowed instances, 65–66
showing data and talking about it, 66–67
“And” in sentences, 41
Annotated identifiers, 320
Annotated links, 326
Answers in The Flow, 221
Application systems, reverse engineering, 365
Appointments, exercise for, 363
Arbitrary identifiers, 320
Arrows in The Flow, 221
Articles in sentences, 30–31, 41
Atomic relations in relational databases, 336
Atomicity of nominal-scale attributes, 118
Attribute values, definition of, ...
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