Business Process Driven SOA using BPMN and BPEL
From Business Process Modeling to Orchestration and Service Oriented Architecture
Matjaz B. Juric Kapil Pant
PUBLISHING
BIRMINGHAM - MUMBAI
Table of Contents
Preface
Chapter 1: SOA and Business Processes 5 Why Care about Business Processes? 7
Examples of Business Processes 8 How Business Processes Emerge 11 How Business Processes and IT Relate 12
IT Flexibility 13
Heterogeneous Architecture 14 Traditional Software Lifecycles 16
Why Do We Need SOA? 16
Why Should We Believe This? 17
SOA Approach to Business Processes 19 Major Improvements in the SOA Approach 21
Focus on Content, Not Technology 24
Management Support 25 SOA Competency Centre 26
SOA Inception 26 SOA Forces 28 Value of SOA for IT Departments 29
Changes in the Development Approach 30
Reduced Complexity 32 Technical Introduction to SOA 32
BPMN 34 BPEL 34
Features 36
Services 36
Service Interfaces 38 Messages 38 Synchronicity 38 Loose Coupling 39
Table of Contents
Quality of Service 39
Other Important Parts of SOA 39
Enterprise Service Bus 40 Registry and Repository 42
Rules Engines 43 Business Activity Monitoring 44
User Interactions 45
How SOA, BPMN, and BPEL Fit Together 47
Agility 50 Resilience 50 Alignment Between Business and IT 50
New Business Models 51 How the Puzzles Fit Together 51
SOA Vendors 52 Summary 53 Chapter 2: Modeling Business Processes for SOA 55
Business Process Management 56
IT and BPM 56 SOA and BPM 58 Business Process Lifecycle 59
BPM and SOA—A Perfect Fit for the Lifecycle 60
Business Process Modeling 62 Modeling Method and Notation 63
ARIS 63
Modeling Notation 66
BPMN 66
Process Design 69 Results of Process Modeling 71
Process Map 71 Roles and Relations Structure 72
As-is Process Model 73 Publishing and Communicating Process Models 82
Process Simulation 82
Tools for Simulating Processes 83
Modeling Principles 84 Common Problems in Process Modeling 85
Process Implementation 87 Classic Software Development 88
Standardized ERP Solutions 90 Service Oriented Architecture 91
Process Implementation Phase with BPEL 92
Process Execution and Control 93 SOA for the Process Execution and Control Phase 93
Business Activity Monitoring 94
Process Optimization 96 The To-be Process Model 98 Key Performance Indicators 99 Typical Problems in Process Optimization 100
Summary 101 Chapter 3: BPMN for Business Process Modeling 103
The Need for Standards in Business Process Modeling 103
Business Process Classification and BPMN 104 Business Process Diagrams—Core Elements 108
Business Process Diagrams—A Deeper Analysis of the
Key Elements of BPMN 111
Events 111 Activities 115 Task 118 Gateways 120 Sequence Flow 123 Message Flow 124 Association 125 Pool 126 Lanes 126 Data Object 126 Group 127 Text Annotation 128
Introduction to Oracle Business Process Analysis Suite 128 Developing an Example Process Using BPMN and the Selected Tool 132
Summary 137 Chapter 4: BPMN—Advance Constructs 139
Business Process Modeling General Guidelines 139 Rule #1: Process Models Should Provide Aid in
Process Understanding 139 Rule # 2: Match Each Split with a Join 140
Rule #3: Have a Well-Defined Start and End Event 143
Rule #4: Look Out for Orphan Tasks 143 BPMN Attributes and Tools Support 144
Business Process Diagram 147
Process 149
Sub-Process 151
Events in Detail 152
Table of Contents
Start Events End Events
Intermediate Events
Process Modeling Patterns and BPMN Basic Control Patterns
Simple Sequence
Branching and Synchronization Patterns
Multi Choice
Structured Synchronizing Merge Multi Merge
Iteration Based Patterns
Arbitrary Cycles Structured Loop
Termination
Implicit Termination Explicit Termination
Multiple Instance Pattern
Multiple Instances without Synchronization
Multiple Instances with a Priori Design-Time Knowledge Multiple Instances with a Priori Run-Time Knowledge
State-Based Patterns
Deferred Choice
Summary
Chapter 5: Process Analysis and Transformation—From BPMN to BPEL
152 159 165
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177 178 179
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185 186 187
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Business Process Analysis Using Simulation 192 The Business Process Model and Data input 192
Simulation and Scenario Analysis 197
Model Target Process 202 Business Process Transition: Bridging the Business—IT divide 203
BPMN to BPEL—Key Considerations 204 BPMN Specification for BPEL Mapping 204 Tools to Support BPMN-BPEL Transformations 204
Oracle BPM Suite: Oracle BPA and SOA Suite for BPMN-BPEL Mapping 205 Process Detailing for Transition—A Look into Oracle Extensions for
BPMN and BPEL 209
Business- IT Synchronization using Process Blueprint 220
Transformation Case Study 226 Business Process Overview—What is 'Portfolio Account Opening?' 226
Business Process Transformation—Modeling and Analysis 228
Business Process Detailing for Transformation 230
Model Validation before Transformation 234 Automatic Mapping of BPA Elements for BPEL 235
Generate Business Process Blueprint 236
[ i v ]Retrieve the Business Process Blueprint 239
Create a BPA Connection for Importing the Blueprint 239
Create a BPEL Project 241 Blueprint View and BPEL View 244
Add Implementation Details 249
Deploy and Test 250 Updating the BPA Server 251
Summary 252 Chapter 6: Business Process Orchestration for SOA 253
BPM Architecture and Role of Business Process Orchestration 253
Executing BPEL Processes in BPEL Process Manager 256
Initiation of the Process Instance 256 Accessing a Human Task through the Worklist Application 260
Task Invocation from BPEL Process Manager and its Integration
with Worklist Application 265
