Stiehl | Process-Driven Applications with BPMN | E-Book | www2.sack.de
E-Book

E-Book, Englisch, 345 Seiten

Stiehl Process-Driven Applications with BPMN


2014
ISBN: 978-3-319-07218-0
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 345 Seiten

ISBN: 978-3-319-07218-0
Verlag: Springer International Publishing
Format: PDF
Kopierschutz: 1 - PDF Watermark



How can we optimize differentiating business processes and exploit their full potential? Here Volker Stiehl provides answers, utilizing the various options that the BPMN (Business Process Model and Notation) standard offers for planning, implementing and monitoring processes.The book presents an approach for implementing an architecture for applications that strives to find a balance between development and maintenance costs, sustainability, scalability and fault tolerance; that meets flexibility requirements without becoming inordinately complex itself; and that keeps the end application as abstract as possible from the system landscape in which it operates. Based on the semantic enhancements found in version 2.0 of the BPMN standard, which have made it possible to execute process models, his approach exploits BPMN to create and run complete application architectures. In this context, BPMN is not just used to model the business processes of the application, as the 'B' in BPMN might suggest; but also to model and execute the integration processes between the systems. Throughout the book, the software package SAP Process Orchestration is used to illustrate the implementation of the proposed architecture, yet all recommendations are intentionally kept generic so that they can be implemented on any other comparable platform as well.Software architects, IT managers, software developers and project managers, as well as students of information and business technology will find the book a valuable resource. The proposed application architecture offers them a detailed blueprint, the principles of which they can use to plan and implement process-driven distributed applications.

Dr. Volker Stiehl studied computer science at the Friedrich-Alexander-University of Erlangen-Nuremberg. After 12 years as developer and consultant at Siemens, he joined SAP in 2004. As Chief Product Expert, Volker is currently a member of the product management team for SAP Net Weaver Process Integration, SAP's reliable/high performance SOA middleware product for system integrations. Volker is a regular speaker at various national and international conferences and also a lecturer at the University of Erlangen-Nuremberg and the Baden-Wuerttemberg Cooperative State University Mosbach.

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Weitere Infos & Material


1;1: Introduction;19
1.1;1.1 Enterprise Application Software in the Age of Globalization;19
1.2;1.2 Book Structure;24
1.3;1.3 SOA and Process-Driven Applications;25
1.3.1;1.3.1 Commonalities;26
1.3.2;1.3.2 Differences;27
1.3.3;1.3.3 Process-Driven Application, Process-Driven Architecture;30
2;2: Definition of Process-Driven Applications;31
2.1;2.1 A Brief History: From xApps to Process-Driven Applications;32
2.2;2.2 Process-Driven Applications in Comparison with Alternative Application Categories;35
2.2.1;2.2.1 Requirements for Enterprise Application Software in Distributed Environments;36
2.3;2.3 Definition and Properties of Process-Driven Applications;37
2.4;2.4 The Role of BPMN (Business Process Model and Notation) for Process-Driven Applications: Basics;41
2.4.1;2.4.1 BPMN Core Elements;44
2.4.1.1;2.4.1.1 Semantics of Process Models;45
2.4.1.2;2.4.1.2 Events;46
2.4.1.3;2.4.1.3 Gateways;47
2.4.1.4;2.4.1.4 Activities;47
2.4.2;2.4.2 Explanation of the Process Using a Simplified Order Process;48
2.5;2.5 Example Processes for Process-Driven Applications;51
2.5.1;2.5.1 Master Data Processing;51
2.5.2;2.5.2 Troubleshooting in Project Management;53
2.5.3;2.5.3 Resource Planning for Shift Workers;55
2.5.4;2.5.4 Damage Reports in the Public Sector;57
3;3: Architecture of Process-Driven Applications;60
3.1;3.1 Methodical Approach: Top-Down;61
3.2;3.2 Specification of Process-Driven Applications;65
3.2.1;3.2.1 General Information About the Process-Driven Application;66
3.2.2;3.2.2 Process Information;67
3.2.2.1;3.2.2.1 General Process Information;68
3.2.2.2;3.2.2.2 Involved Process Roles;69
3.2.2.3;3.2.2.3 Visualization of the Process Flow;69
3.2.2.4;3.2.2.4 Detailed Information About the Process Steps;72
3.2.2.5;3.2.2.5 Description of the Data Flow Within the Process (Process Context);72
3.2.3;3.2.3 Exception Handling;73
3.2.4;3.2.4 Business Objects;74
3.2.5;3.2.5 User Interfaces;76
3.2.6;3.2.6 Services;77
3.2.7;3.2.7 Importance of the Canonical Data Model;80
3.2.8;3.2.8 Cooperation Between Business and IT Experts;83
3.3;3.3 Introduction to the Basic Architecture of Process-Driven Applications;84
3.3.1;3.3.1 Evolution of a Business Model into an Executable Process;84
3.3.2;3.3.2 Advantages and Disadvantages of a Process-Driven Architecture;91
3.3.3;3.3.3 Separation of Business Processes and Technical Processes;93
3.3.4;3.3.4 Loose Coupling;95
3.3.4.1;3.3.4.1 Physical Connection;95
3.3.4.2;3.3.4.2 Communication Style;96
3.3.4.3;3.3.4.3 Data Model/Type System;97
3.3.4.4;3.3.4.4 Binding;97
3.3.4.5;3.3.4.5 Platform Specifics;98
3.3.4.6;3.3.4.6 Interaction Pattern;98
3.3.4.7;3.3.4.7 Transaction Security;99
3.3.4.8;3.3.4.8 Control of Business Logic;99
3.3.4.9;3.3.4.9 Versioning;100
3.3.5;3.3.5 Task Distribution and Interaction Between the Process-Driven Application and the Service Contract Implementation Layer;101
3.3.5.1;3.3.5.1 Process-Driven Application (Business Composition): Focus on User-Centric Processes;101
3.3.5.2;3.3.5.2 Service Contract Implementation Layer (Technical Composition): Focus on Integration-Centric Processes;106
3.3.5.3;3.3.5.3 Interaction Between the Process-Driven Application and the Service Contract Implementation Layer;110
3.3.5.4;3.3.5.4 Including an ESB in the Service Contract Implementation Layer;117
3.4;3.4 Service Repositories and Process-Driven Applications;123
4;5: Advanced Concepts for Architecture Support in Process-Driven Applications;189
4.1;5.1 Locking Behavior of the Connected Systems;189
4.2;5.2 Idempotence;192
4.3;5.3 Events;193
4.4;5.4 Error Handling;196
4.5;5.5 Wizard UIs vs. UIs in Process Steps;198
4.6;5.6 Patterns;202
4.6.1;5.6.1 Composition Patterns;203
4.6.2;5.6.2 Integration-Centric Patterns;212
4.6.2.1;5.6.2.1 Aggregator Pattern;213
4.6.2.2;5.6.2.2 Resequencer Pattern;222
4.6.3;5.6.3 Enhancement Proposal for BPMN for Dedicated Modeling of Integration Processes;226
4.6.3.1;5.6.3.1 Pattern Symbols as BPMN Language Extensions for Meaningful Representation of Integration Processes;227
4.6.3.2;5.6.3.2 Aggregator Pattern;229
4.6.3.3;5.6.3.3 Content Enricher Pattern;232
4.6.3.4;5.6.3.4 Content Filter Pattern;233
4.6.3.5;5.6.3.5 Message Translator Pattern;234
4.6.3.6;5.6.3.6 Content-Based Router Pattern;235
4.6.3.7;5.6.3.7 Message Filter Pattern;236
4.6.3.8;5.6.3.8 Recipient List Pattern;236
4.6.3.9;5.6.3.9 Resequencer Pattern;237
4.6.3.10;5.6.3.10 Splitter Pattern;240
4.6.3.11;5.6.3.11 Composed Message Processor Pattern;241
4.6.3.12;5.6.3.12 Scatter-Gather Pattern;243
4.6.3.13;5.6.3.13 Extensions for Messages;244
4.6.3.14;5.6.3.14 Using the Extended BPMN in Specific Scenarios;245
4.6.3.15;5.6.3.15 Comments on the Extended BPMN;249
4.7;5.7 More Flexibility by Combining Rules with Analytical Applications;250
4.7.1;5.7.1 Using Business Rules to Increase Flexibility;252
4.7.2;5.7.2 Using Business Rules in Technical Processes;264
4.7.3;5.7.3 Increasing Automation by Combining Business Rules and Analytical Applications;270
4.8;5.8 Process-Driven Applications and Unpredictable Process Flows;272
5;6: Conclusion and Outlook;291
5.1;6.1 Outlook;292
5.1.1;6.1.1 Increasing Flexibility Using Modification-Free Extensions;292
5.1.2;6.1.2 What About Cloud and On-Demand Computing , Software as a Service, Mobile Applications, and Main Memory Databases?;295
5.1.2.1;6.1.2.1 Software as a Service, On-Demand and Cloud Computing;295
5.1.2.2;6.1.2.2 Mobile Applications;296
5.1.2.3;6.1.2.3 Main Memory Databases;297
5.1.3;6.1.3 Does REST Have Implications for Process-Driven Applications?;298
6;Epilogue;301
7;Appendix A BPMN Notation;302
7.1;Appendix A.1 Core Elements of BPMN;302
7.2;Appendix A.2 Events;305
7.3;Appendix A.3 Gateways;306
7.4;Appendix A.4 Task Types;309
8;Appendix B Excursus on Service Management: A Comparative Study of Approaches;311
8.1;Appendix B.1 Three-Schema Architecture;311
8.2;Appendix B.2 Semantic Web Technologies;313
8.3;Appendix B.3 Self-Organization and Collective Intelligence;315
9;Appendix C List of Abbreviations;316
10;Appendix D GlossaryAll glossary terms marked with (*) are reproduced with the kind permission of Nicolai Josuttis (Josuttis 20...;319
11;References;334
12;Index;338



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