9780321574282

Successfully delivering Solutions via Patterns InPatterns-Based Engineering, two leading experts bring together true best practices for developing and deploying successful software-intensive systems. Drawing on their extensive enterprise development experience, the authors clearly show how to deliver on the promise of a patterns-based approach-and consistently create higher-quality solutions faster, with fewer resources. Lee Ackerman and Celso Gonzalez demonstrate how Patterns-Based Engineering (PBE) can help you systematically overcome common obstacles to success with patterns. By bringing discipline and clarity to patterns usage, their techniques enable you to replicate your success broadly and scale patterns to even the largest projects. The authors introduce powerful ways to discover, design, create, package, and consume patterns based on your organizationrs"s experience and best practices. They also present extensive coverage of the nontechnical aspects of making patterns work, including a full chapter of guidance on clearing up misconceptions that stand in your way. Coverage includes Using patterns to optimize the entire development lifecycle, including design, coding, testing, and deployment Systematically managing the risks and economic returns associated with patterns Effectively implementing PBE roles, tasks, work products, and tools Integrating PBE with existing development processes, including eXtreme Programming, Scrum, and OpenUP Using Domain Specific Languages (DSLs) with patterns Whether yours"re an architect, designer, developer, analyst, project manager, or process engineer,Patterns-Based Engineeringwill help you to consistently derive greater business value and agility from patterns.

Lee Ackerman, Master Certified IT Specialist at IBM, has extensive experience with patterns, model-driven development, Patterns-Based Engineering, XML, data, and SOA. He has spent the past few years helping IBM Rational build its Patterns-Based Engineering approach and offerings and has written and presented extensively on these topics.

Celso Gonzalez spent several years as IBM Rational Worldwide Architecture Management leader and contributor to the Rational Unified Process and is now part of the Rational Modeling development team, where he uses his expertise on patterns development to enhance Rational Modeling tools support for patterns and model analysis.

<>Foreword xix

Preface xxi

Acknowledgments xxv

About the Authors xxvii

Part I: Understanding PBE 1

Chapter 1: Defining Patterns-Based Engineering 3

Asset-Based Development 4

Patterns 6

Engineering 7

Patterns-Based Engineering 7

A Model for Succeeding with PBE 10

Examples of PBE Results 14

Why Do We Need PBE? 17

Important Definitions 19

Summary 21

Chapter 2: Examples of Pattern Implementations 23

Types of Pattern Implementations 23

UML Pattern Implementations 24

Model-to-Model Pattern Implementations 29

Model-to-Text Pattern Implementations 31

Using Implementations in Combination 34

Summary 34

Chapter 3: Case Study Introduction 37

Overview 37

Meet the Team 38

Oslec Development Process 39

Overview of the Plan 40

Case Study Roadmap 41

Summary 43

Chapter 4: Iteration 0: Envisioning 45

Getting Started 46

PBE Focus 47

LogoAuction Application Requirements 48

Elaborating the Architecture 55

Recording the Patterns Used 65

Opportunity Identification 65

Evaluating the Candidate Patterns 66

Summary 69

Chapter 5: Iteration 1: Creating the Pattern 71

Launching the Iteration 71

Designing the Subsystem Façade Pattern 73

Creating the Subsystem Façade Pattern Specification 87

Building the Subsystem Façade Pattern Implementation 87

Summary 111

Chapter 6: Iteration 2: Packaging the Pattern 113

Launching the Iteration 113

Applying the Subsystem Façade Pattern to the New Subsystem 114

Packaging the Patterns 116

Making the Pattern Available for Reuse 118

Summary 122

Chapter 7: Iteration 3: Consuming the Pattern 123

Launching the Iteration 123

Using the Pattern in a New Subsystem 125

Refactor the Items Management Subsystem to the Pattern 129

Summary 132

Chapter 8: PBE and the Software Development Process 135

Introduction to the PBE Practice 135

PBE Roles and Tasks in Context 137

Getting Started with the PBE Practice 139

Leveraging the PBE Practice within Your Own Process 143

Summary 150

Part II: PBE Patterns and Guidelines 151

Chapter 9: Introduction to the PBE Patterns and Guidelines 153

Relationship of Patterns and Guidelines to Other Elements within PBE 153

Quick Guide to PBE Patterns and Guidelines 154

Summary 164

Chapter 10: Foundational Patterns and Guidelines 165

Patterns 166

Guidelines 176

Summary 181

Chapter 11: Discovering Patterns 183

Patterns 184

Guidelines 190

Summary 198

Chapter 12: Designing Patterns 199

Patterns 199

Guidelines 209

Summary 220

Chapter 13: Creating Patterns 221

Patterns 221

Guidelines 234

Summary 243

Chapter 14: Packaging Patterns 245

Patterns 245

Guidelines 250

Summary 262

Chapter 15: Using Domain-Specific Languages with Patterns 265

Patterns 265

Guidelines 273

Summary 280

Chapter 16: Consuming Patterns 281

Guidelines 281

Summary 303

Part III: Additional Topics 305

Chapter 17: Benefits of PBE 307

Increased Productivity 307

Increased Quality 311

Improved Communication 312

Better Leveraging of Skills and Expertise 314

Improved Governance 316

Summary 318

Chapter 18: Economic Considerations of PBE 319

Key Economic Aspects of PBE 319

Pattern Sources 320

PBE Adoption 325

Pattern Implementations 330

PBE Projects 331

Summary 332

Chapter 19: PBE Misconceptions 335

PBE Eliminates Creativity 335

PBE Introduces Project Risk 336

Pattern Identification Is Not for Everybody 337

Patterns Need to Be Used Everywhere, All the Time 338

PBE Is Overly Formal 339

PBE Is Only for Design 340

PBE Is Only for Forward Engineering 341

Guilty by Association 342

PBE Requires Tools from a Specific Vendor 343

Summary 343

Part IV: Appendices 345

Appendix A: PBE Definitions 347

Code Generators 347

Domain-Specific Languages 348

Exemplar 349

Metamodel 350

Model 352

Pattern Catalog 353

Pattern Categories 353

Pattern Language 354

Reusable Asset 356

Appendix B: PBE and Other Development Approaches 357

Asset-Based Development 357

Model-Driven Development (MDD) 358

Model-Driven Architecture (MDA) 359

Software Factories 361

Appendix C: PBE Tooling Options 365

Eclipse Modeling Project 365

IBM Rational Software Modeling Platform 365

AndroMDA 366

Microsoft Visual Studio 366

Sparx Enterprise Architect 366

Process Tooling and Framework 367

Appendix D: PBE Patterns and Guidelines 369

Appendix E: Subsystem Façade Pattern Specification 373

Context 373

Problem 373

Forces 373

Solution 374

Sample Code 375

Pattern Composition 383

Appendix F: Introduction to the PBE Practice 385

PBE Roles 385

PBE Main Work Products 389

Task Order 393

PBE Tasks 394

References and Resources 417

References 417

Additional Resources 421

Index 425

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Patterns-Based Engineering Successfully Delivering Solutions via Patterns

Patterns-Based Engineering Successfully Delivering Solutions via Patterns

0321574281

Summary

Author Biography

Table of Contents

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