Names of design patterns appear in small capitals: e.g., ADAPTER. Page numbers in bold indicate the definition of a term. Numbers in italics indicate a diagram for the term. Letters after a diagram's page number indicate the kind of diagram: a "c" denotes a class diagram, an "i" denotes an interaction diagram, and an "o" denotes an object diagram. For example, 88co means that a class and object diagram appears on page 88.

B

BTree 202

base class, see class, parent

Beck, Kent xi, 357

Bedrock

use of DECORATOR 179, 180

behavioral pattern 10, 221

comparison between class and object scope 221

discussion 345

black-box reuse, see reuse, black-box

block, Smalltalk 270

BNF form 247

examples of 243, 248, 251

BombedMazeFactory 93

BombedMazeGame 115

BombedWall 93 94 124

Booch Components

use of ITERATOR 270

use of Strategy 323

Booch, Grady xiii, 260

Booch method 363

Boolean

expression 251

variable 254

BooleanExp 252

Border 44, 45c, 46o

BorderDECORATOR 176o, 176c, 180

BRIDGE 151

compared with ADAPTER 219

configured by ABSTRACT FACTORY 155

in catalog summary 8

Lexi's use of 58

use of delegation in 21

bridge 152

broadcast communication 296

Builder 97

compared with ABSTRACT FACTORY 105, 135

compared with PROTOTYPE 135

in catalog summary 8

use in compiler example 189

Builder

participant of Builder 98, 98c

Bureaucrat, see also CHAIN OF RESPONSIBILITY 232

Button 50c, 223o, 224ci, 229, 279