xvi TABLE OF CONTENTS 13.6 Component-Level Design 282 13.7 Mobility and Design Quality 282 13.8 Mobility Design Best Practices 285 13.9 Summary 287 CHAPTER 14 PATTERN-BASED DESIGN 289 14.1 Design Patterns 290 14.1.1 Kinds of Patterns 291 14.1.2 Frameworks 293 1413 Describing a Pattern 293 14.1.4 Machine Learning and Pattern Discovery 294 14.2 Pattern-Based Software Design 295 14.2.1 Pattern-Based Desian in Context 295 14.2.2 Thinking in Pattems 296 14.2.3 Design Tasks 297 14.24 Building a Pattern-Organizing Table 298 14.25 Common Design Mistakes 298 14.3 Architectural Patterns 299 14.4 Component-Level Design Patterns 300 14.5 Anti-Patterns 302 14.6 User Interface Design Patterns 304 14.7 Mobility Design Patterns 305 14.8 Summary 306 PART THREE QUALITY AND SECURITY 309 CHAPTER 15 QUALITY CONCEPTS 310 15.1 What Is Quality?311 15.2 Software Quality 312 15.2.1 Quality Factors 312 15.2.2 Qualitative Quality Assessment 314 15.2.3 Quantitative Quality Assessment 315 15.3 The Software Quality Dilemma 315 15.3.1 "Good Enough"Software 316 15.3.2 The Cost of Quality 317 15.3.3 Risks 319 15.3.4 Negligence and Liability 320 xvi TABLE OF CONTENTS 13.6 Component-Level Design 282 13.7 Mobility and Design Quality 282 13.8 Mobility Design Best Practices 285 13.9 Summary 287 CHAPTER 14 PATTERN-BASED DESIGN 289 14.1 Design Patterns 290 14.1.1 Kinds of Patterns 291 14.1.2 Frameworks 293 14.1.3 Describing a Pattern 293 14.1.4 Machine Learning and Pattern Discovery 294 14.2 Pattern-Based Software Design 295 14.2.1 Pattern-Based Design in Context 295 14.2.2 Thinking in Patterns 296 14,2.3 Design Tasks 297 14.2.4 Building a Pattern-Organizing Table 298 14.2.5 Common Design Mistakes 298 14.3 Architectural Patterns 299 14.4 Component-Level Design Patterns 300 14.5 Anti-Patterns 302 14.6 User Interface Design Patterns 304 14.7 Mobility Design Patterns 305 14.8 Summary 306 PART THREE QUALITY AND SECURITY 309 CHAPTER 15 QUALITY CONCEPTS 310 15.1 What Is Quality? 311 15.2 Software Quality 312 15.2.1 Quality Factors 312 15.2.2 Qualitative Quality Assessment 314 15.2.3 Quantitative Quality Assessment 315 15.3 The Software Quality Dilemma 315 15.3.1 “Good Enough” Software 316 15.3.2 The Cost of Quality 317 15.3.3 Risks 319 15.3.4 Negligence and Liability 320