Lecture: Standard Software for Enterprise Resource Planning

Service-Oriented Computing for Business Applications
Current trends, system architectures, and future challenges

Lecturer: Ralf Möller, Lab classes: Rainer Marrone, Michael Wessel

Combined lecture + lab class: Thursday 12.45 - 14.15, Location: ES42, Rm 2589 (Ralf Möller)

We have two alternative lab classes:

Lab class 1: Friday 9.00 - 10.00 (Rainer Marrone), Location: HS20, Rm 206
Lab class 2: Friday 10.00 - 11.00 (Michael Wessel), Location: HS20, Rm 206

Lab classes start on Friday 14th April.

Acknowledgments

Prerequisites:

Note that this is a master course!!!
Thus, we assume elementary knowledge in computer science
(see the lectures on, e.g., ECommerce or Web Engineering)

Content:

The lecture is based on:

• Web Services: Concepts, Architecture and Applications
• Service-Oriented Computing
• Database Systems, An Application Oriented Approach
  Part 6: Distributed Applications and the Web

Many slides are taken from Gustavo Alonso's and Cesare Pautasso's graduate course.
Other material used in presentations will be cited directly in the presentations (see also below for a list).

Presentations:

1. Introduction to Web services
   Find and bind
2. A historical perspective: RPC
   Procedure invocations PLUS safeness by transactions (ACID), 2PL, 2PC, ...
3. Message-oriented Middleware
   Loosely coupled systems to increase flexibility, fault tolerance, and replicability
   ebXML: business processes, message exchange patterns, and possible changes in the state of agents
4. The content of messages and its treatment
   XML-Schema
   SOAP
5. Limitations of SOAP, Service Descriptions, Conversations
   SOAP and asynchronous communication, SOAP and MIME attachments
   WSDL, Web Service Description Language
   WSIF, Web Service Invocation Framework
6. Universal Description, Discovery, and Integration
   Pros and cons of standard software for service repositories
7. SAP's Enterprise Service Architecture, NetWeaver, Composite Application Framework
8. Web-Service Extensions
   Reliable Messaging revisted, Web Service Coordination, High-level Transactions
   (i.e., transactions with compensation services), Web Service Security
9. Business Process Execution Language
   Cooperation and Coordination
10. Summary: Future System Architectures (i.e., topics for diploma theses)
11. Architecture of Next Generation Business Solutions
    Dr. Rüdiger Buck-Emden, Vice President Research and Development, SAP AG

Previous exams:

• SoSe 05

Literature:

Web Services: Concepts, Architecture and Applications, Springer, 2004

Service-Oriented Computing, John Wiley and Sons, 2005

Enterprise Service Architecture, O'Reilly, 2004

Database Systems, An Application Oriented Approach, Pearson International Edition, 2005