Beautiful Architecture

versus virtualization, 169, 200
end-user application architectures
GNU Emacs, 263–278
KDE, 279–311
enterprise application architecture
Facebook Platform, 111–152
Lifetouch, 63–88
resource-oriented architectures, 89–109
scaling, 45–62
entropy resistance, xvii
environments (see runtime environments)
errors
versus expectations, 212
evaluation (see lazy evaluation)
of architectures, 19
event channels
Xen, 168
Evolution Data Server (EDS), 292
examples
Design Town project, 33–41
Facebook Platform, 111–152
GNU Emacs, 263–278
Guardian operating system, 175–198
Jikes RVM, 235–260
JPC, 199–234
KDE, 279–311
Lifetouch, 63–88
Messy Metropolis project, 26–33
Persistent URL system, 103–108
Project Darkstar, 47–62
exceptions
handling, 212, 222
Jikes RVM, 253
performance, 207
execution model
Jikes RVM, 246
EXPAND
Guardian operating system, 189
expressions
referential transparency, 329
extendibility
adding types, 337
criteria, 321
defined, 315
and reusability, 323
external libraries
performance, 207, 223
eXtreme Programming (XP)
in Design Town project, 34

F
Facebook JavaScript (FBJS), 147–150
Facebook Markup Language (see FBML)
Facebook Platform, 111–152
Facebook Query Language (FQL), 125, 126–132

facets, 66–87

factored control flow graph

Jikes RVM, 251

factoring

IA-32 architecture with JPC, 215

factors

in architecture, 41

failure

diagnosing, 177

failure modes, 86

Fallingwater house, Frank Lloyd Wright, 372

fault-tolerance

in distributed systems, 56

FBJS (Facebook JavaScript), 147–150

FBML (Facebook Markup Language)

architecture of, 141

social web portals, 133–146

file structure

Lifetouch, 67

file systems

Guardian operating system, 190–195

file transfer protocols

Lifetouch, 78

files

access security in Tandem computers, 194

GNU Emacs, 264

filesystems

optimization in KDE, 303

financial contracts

handling with object technology, 318

Firefox, 276

“first-order citizens”

operations, 326

fork bombs

performance isolation, 158

forms

Lifetouch, 72

FQL (Facebook Query Language), 125, 126–132

frames

GNU Emacs, 265

Free Software community

quality of software, 284

functional languages

versus object oriented, 315

functional programming

modular design, 315

functional solutions

modularity, 321–330

functionality

locating in Design Town project, 36

location of in Messy Metropolis project, 29

in relation to architecture, 10

“functionality package” tags, 140

functions

and types, 332

396 INDEX