Next Generation SOA

Thomas Erl is a top-selling IT author, founder of Arcitura Education, and series editor of the Prentice Hall Service Technology Series from Thomas Erl. With more than 175,000 copies in print worldwide, his books have become international bestsellers and have been formally endorsed by senior members of major IT organizations, such as IBM, Microsoft, Oracle, Intel, Accenture, IEEE, HL7, MITRE, SAP, CISCO, HP, and many others. As CEO of Arcitura Education Inc., Thomas has led the development of curricula for the internationally recognized Big Data Science Certified Professional (BDSCP), Cloud Certified Professional (CCP) and SOA Certified Professional (SOACP) accreditation programs, which have established a series of formal, vendor-neutral industry certifications obtained by thousands of IT professionals around the world. Thomas has toured more than 20 countries as a speaker and instructor. More than 100 articles and interviews by Thomas have been published in numerous publications, including The Wall Street Journal and CIO Magazine.

Clive Gee has over 30 years' experience in the IT industry and has worked for IBM in both the UK and the United States, spending the majority of his career as a solution architect dedicated to the early customer implementations of emerging technologies such as object-orientation, mobile computing, and SOA. Clive has taken on the role of consulting architect on many customer engagements in the aerospace, manufacturing, and public sectors, as well as projects in the retail, transportation, telecommunications, insurance, and financial industries. He has a strong business focus and a track record of developing innovative and yet practical solutions to fulfill real business needs. Over the last few years, Clive has turned his attention to SOA governance, a field in which he is considered to be a leading worldwide practitioner. He has led efforts with several major organizations in the United States, Japan, and Australia that were successful at establishing SOA Centers of Excellence and implementing effective governance in areas of service-orientation. Clive is currently residing in Scotland's Northern Isles as a semi-retiree who still agrees to take part in the occasional project. He is a co-author of the book titled SOA Governance: Achieving and Sustaining Business Agility (IBM Press 2008), as well as another book from the Prentice Hall Service Technology Series from Thomas Erl titled SOA Governance: Governing Shared Services On-Premise and in the Cloud.

An expert in middleware, Jürgen Kress currently works at Oracle EMEA Alliances and Channels and is responsible for Oracle's EMEA fusion middleware partner business. He is the founder of the Oracle SOA & BPM, WebLogic Partner Communities, and the global Oracle Partner Advisory Councils. The Fusion Middleware Partner Community is home to over 5,000 members internationally as Oracle's most active and successful community, which Jürgen manages with monthly newsletters, Webcasts, and conferences. He also hosts the annual Fusion Middleware Partner Community Forums and Fusion Middleware Summer Camps, where more than 200 partners receive product updates, roadmap insights, and hands-on training supplemented by a variety of Web 2.0 tools like Twitter, discussion forums, online communities, blogs, and wikis. Jürgen is also a member of the steering board of the International SOA, Cloud + Service Technology Symposium, and is a frequent speaker at conferences that include the SOA & BPM Integration Days, JAX, UKOUG, OUGN, and OOP.

Berthold Maier enjoys working for a wide portfolio of clients as a chief architect and enterprise architect, and possesses over 18 years of experience as a developer, coach, and architect in the building of complex mission-critical applications and in integration scenarios. Throughout his 11-year career at Oracle, Berthold has been given leading positions within the consulting division that notably included chief architect, a management position in which he assumed responsibility for reference architectures involving SOA and enterprise integration. Berthold is also the originator and architect of several frameworks around EAM and SOA, and is well-known as a conference speaker, book author, and magazine writer.

Pethuru Raj possesses over 12 years of professional experience in the IT industry. In his academic career, he was granted international fellowships, JSPS and JST, to work as a postdoctoral researcher at two leading Japanese universities for three years. After earning a UGC-sponsored PhD degree from Anna University in Chennai, India, Pethuru obtained a CSIR fellowship to work as a research associate in the department of Computer Science and Automation at the Indian Institute of Science in Bangalore. Pethuru has worked as an application architect for eight years and a product architect for four years, leveraging the opportunities that came his way to become specialized in the business domains of telecommunications, retail, government, energy, and healthcare. Prior to his career at Wipro Consulting, Pethuru spent one year as the enterprise architect at Sify Software Ltd. and over a year and a half as a lead architect in Bosch's corporate research division. During his three years as a senior architect for the Oracle Fusion Middleware Practice of Wipro Technologies, Pethuru become well-versed in emerging technologies like cloud computing, SOA, event-driven architecture, and enterprise architecture. He has also developed a keen understanding of Big Data computing (Hadoop), realtime cloud analytics, and machine-to-machine (M2M) integration, as well as high-performance system design and various smartphone applications. Pethuru has authored chapters for a number of technology-centric books in collaboration with internationally acclaimed professors, and is author of a book titled Cloud Enterprise Architecture that is published by CRC Press.

Leo Shuster has directed efforts in enterprise architecture and SOA strategy and execution for a number of organizations, including the National City Corporation, Ohio Savings Bank, and Progressive Insurance. He currently holds the position of director, IT Architecture at Nationwide Insurance, and possesses almost 20 years of IT experience. Throughout his career, Leo has performed in a variety of roles that span all aspects of the software development lifecycle and IT management. As a result, Leo has gained expertise in enterprise and application architecture, SOA, and IT governance and transformation, as well as platform modernization, process management and reengineering, and strategic planning, among many other areas. He frequently shares this knowledge with the IT community through articles and blog posts. Leo holds an MS in computer science and engineering from the Case Western Reserve University, and an MBA from the Cleveland State University. Leo has presented on enterprise architecture, SOA, BPM, and related topics for groups of all sizes at various industry events and conferences. He is a co-author of the book titled SOA Governance: Governing Shared Services On-Premise and in the Cloud, which is a part of the Prentice Hall Service Technology Series from Thomas Erl. Leo regularly discusses advanced software architecture topics on his blog, which can be viewed at http://leoshuster.blogspot.com.

Since the launch of his career in the mid-90s, Bernd Trops has worked as a system engineer, SOA architect, and coach on countless OO and SOA projects for a range of companies that include GemStone, Brokat, WebGain, and Oracle. During his time at Oracle, Bernd held the position of SOA architect and was primarily involved in large-scale initiatives. One notable project under his belt is the Deutsche Post Service-Backbone, which comprises the foundation of the Talend ESB. In his current role of principal solution architect at Talend, Bernd is closely involved in technical architecture and the design of complex IT solutions. Bernd has presented at a number of industry conferences during his career, such as the SOA Symposium, Oracle Open World, JAX, and OOP. Bernd is co-author of SOA Design Patterns and SOA Speizial, as well as cofounder of the Mason of SOA.

Clemens Utschig is currently heading Marketing & Sales Architecture at Boehringer Ingelheim, one of the world's leading pharmaceutical companies, at its corporate headquarters in Germany, focusing on implementing the digital revolution and consolidating the global landscape onto standard platforms. Before joining Marketing and Sales he ran the global master data management program inside BI's Shared Service Center--devel- oping the global process templates for customer, vendor and material maintainance, deploying those into BI's network and providing global transactional services from Brazil to China. Prior to joining Boehringer Ingelheim, Clemens fostered a ten-year career at Oracle as a platform architect on the SOA/BPM development team, helping clients establish enterprise-wide SOA. He also drove the development of several platform components, such as the Weblogic SCA container and the Spring Service Engine.

Philip Wik is currently a DBA for Redflex Traffic Systems. With more than 30 years of experience, Philip has worked as an architect, analyst, integrator, and developer for prominent leading companies such as JPMorgan Chase, Wells Fargo, and American Express, as well as Honeywell, Boeing, and Intel. Having received training and education on three different continents, Philip has a robust multinational orientation and has led a number of offshore teams. He has also published two business books titled How to Do Business With the People's Republic of China and How to Buy and Manage Income Property, and is a frequent article contributor to the online Service Technology Magazine.

Active in several roles at OPITZ CONSULTING with strong dedication to delivering value to customers, Torsten Winterberg is part of the business development and innovation department. In this role, he focuses on identifying and evaluating emerging trends and technologies with the aim of delivering innovative and differentiated solutions to customers. Also a director of the competence center for integration and business process solutions, Torsten is following his passion for building the best delivery unit for customer solutions in the areas of SOA and BPM. Torsten has extensive experience as a developer, coach, and architect in building complex mission-critical Java EE applications, although his proficiency and passion actually lie in the design and architecture of complex IT systems involving BPMN, BPEL, ESB, BAM, and SOA in general. A recognized speaker in the German Java and Oracle communities, Torsten has written numerous articles on SOA/BPM-related topics and is part of the Oracle ACE director team, leading the DOAG middleware community.

Hajo Normann works for Accenture in the role of SOA & BPM Community of Practice lead in ASG and is responsible for the architecture and solution design of SOA/BPM projects, primarily acting as the interface between business and IT. He enjoys tackling organizational and technical challenges and motivating solutions in customer workshops, conferences, and publications. Together with Torsten Winterberg, Hajo leads the DOAG SIG Middleware and is an Oracle ACE director and active member of a global network within Accenture who is in regular contact with SOA/BPM architects from around the world.

Chapter 1: Introduction 1
About This Book 2
Who This Book Is For 2
What This Book Does Not Cover 3
How This Book Is Organized 3
Additional Information 4
Updates, Errata, and Resources (www.servicetechbooks.com) 4
Service Technology Specifications (www.servicetechspecs.com) 4
The Service Technology Magazine (www.servicetechmag.com) 5
Service-Orientation (www.serviceorientation.com) 5
What Is REST? (www.whatisrest.com) 5
What Is Cloud? (www.whatiscloud.com) 5
SOA and Cloud Computing Design Patterns (www.soapatterns.org, www.cloudpatterns.org) 5
SOA Certified Professional (SOACP) (www.soaschool.com) 5
Cloud Certified Professional (CCP) (www.cloudschool.com) 5
Big Data Science Certified Professional (BDSCP) (www.bigdatascienceschool.com) 6
Notification Service 6
Chapter 2: An Overview of SOA & Service-Orientation 7
Services and Service-Orientation 8
Service-Orientation, Yesterday and Today 9
Applying Service-Orientation 12
The Eight Principles of Service-Orientation 12
The Four Characteristics of SOA 13
The Four Common Types of SOA 15
SOA Design Patterns 17
The Seven Goals of Applying Service-Orientation 18
Planning For and Governing SOA 20
The Four Pillars of Service-Orientation 20
The Seven Levels of Organizational Maturity 22
SOA Governance Controls 23
Chapter 3: A Look at How Services are Defined and Composed 25
Basic Concepts 27
Agnostic and Non-Agnostic Logic 27
Service Models and Service Layers 27
Service and Service Capability Candidates 28
Breaking Down the Business Problem 28
Functional Decomposition 28
Service Encapsulation 30
Agnostic Context 30
Agnostic Capability 32
Utility Abstraction 32
Entity Abstraction 33
Non-Agnostic Context 34
Process Abstraction and Task Services 35
Building Up the Service-Oriented Solution 36
Service-Orientation and Service Composition 36
Capability Composition and Capability Recomposition 39
Capability Composition 39
Capability Recomposition 40
Domain Service Inventories 44
Chapter 4: An Exploration of Service-Orientation with the SOA Manifesto 47
The SOA Manifesto 48
The SOA Manifesto Explored 49
Preamble 50
Priorities 51
Guiding Principles 55
Chapter 5: An Overview of Service Technology 63
Web-Based Services 64
SOAP-Based Web Services 65
REST Services 65
Components 66
Service Virtualization 66
Cloud Computing 67
API Management 68
Model-Driven Software Design 68
Semantic Web 69
Business Process Management 70
Composition and Orchestration 70
Master Data Management 71
Business Rule Engines 72
Social Network Technologies 72
Mobile Computing 72
Agent-Driven Architecture 73
Event-Driven Architecture and Complex Event Processing 74
Business Intelligence 75
Enterprise Information Integration and Extract-Transform-Load 76
Big Data 77
Chapter 6: A Look at Service-Driven Industry Models 79
The Enterprise Service Model 80
The Virtual Enterprise Model 81
The Capacity Trader Model 82
The Enhanced Wholesaler Model 83
The Price Comparator Model 83
The Content Provider Model 84
The Job Market Model 84
The Global Trader Model 86
Industry Watchdogs 86
Guarantors 87
Chapter 7: A Case Study 89
Systems Landscape 92
New Marketing Strategy 93
Corporate Culture 95
Vehicle Maintenance 97
The Billing System 97
Strategic Considerations 98
Cloud Adoption 99
New Reference Architecture 102
The Customer Profile Process 102
New Service Technology 105
The SOA Governance Program Office 107
The Enterprise Architecture Board 108
A Transformed Enterprise 110
APPENDICES
Appendix A: Additional Reading for Applying Service-Orientation 117
The Eight Service-Orientation Principles 118
Standardized Service Contract 119
Service Loose Coupling 121
Service Abstraction 122
Service Reusability 123
Service Autonomy 125
Service Statelessness 126
Service Discoverability 128
Service Composability 130
The Four Characteristics of SOA 132
Business-Driven 132
Vendor-Neutral 134
Enterprise-Centric 137
Composition-Centric 138
SOA Design Patterns 140
Appendix B: Additional Reading for Planning & Governing Service-Orientation 151
The Four Pillars of Service-Orientation 152
Teamwork 153
Education 153
Discipline 153
Balanced Scope 154
The Seven Levels of Organizational Maturity 156
Service Neutral Level 157
Service Aware Level 157
Service Capable Level 158
Business Aligned Level 158
Business Driven Level 159
Service Ineffectual Level 159
Service Aggressive Level 159
SOA Governance Controls 160
Precepts 160
Processes 161
People (Roles) 162
Metrics 162
Appendix C: Additional Reading for Cloud Computing 163
Goals and Benefits 164
Reduced Investments and Proportional Costs 164
Increased Scalability 166
Increased Availability and Reliability 167
Risks and Challenges 168
Increased Security Vulnerabilities 168
Reduced Operational Governance Control 168
Limited Portability Between Cloud Providers 170
Multi-Regional Compliance and Legal Issues 171
About the Authors 173
Index 179