Data Architecture

R

Rapid application development

168–170

criticisms

169

disciplining

169

failure risks

168–169

prototypes

169–170

system development

170

Recovery

defined

261

physical design and

261–262

Recursive properties

centers

10

universal

9–10

Recursive relationships

211–212 , 212f

representations

292–293

resolution of

292–293

Redundancy

300–301 , 300f

Reference data

220

Referential groups

303 , 304f

Referential integrity

236

in individual programs

263

level of commitment and

264

physical design

262

reasons for implementing

263–264

Regulation

entities/entity clusters

109

subject area

111–112

Relational clustering

243

Relational data warehouses

321

best use of

330–331

conceptual architecture

328f

Relational databases

273

design alternatives

281

design objectives

281–282

flexibility

282

integrity

281–282

nature of

282

objectives ...