Web Services Barcelona, October 2002 Frank Bermann Dipl.-Ing (RWTH-Aachen), GeM (ESADE)

Contents  Introduction  Types of Web Services  WS-Implementation

Introduction

Company B Company A What are Web Services?  Web Services are direct computer-to- computer communication, based on Internet and XML technologies  Same as EDI, but 5-10 times cheaper ERP Interne t XML

Example: Dell  Certain computer components lose half of their value every 3 months.  Maturing Market: PCs becoming commodity, high price pressure  JIT (reduce stock of critical components)  Collaborative demand planning ClientDell

Example: Dell What did Dell do? ClientDellProvider  Internet Sales (  Propagate demand and production information to the providers  Build to order (get trends)

Example: Dell Results: HP Compaq ClientDellProvider  Eliminated HP and Compaq from main- stream market

Types of WS

The Connected Supply Chain Suppliers Contract Manufacturers Supplier Exchanges Logistics Exchanges Customer Exchanges Virtual Manufacturers Whosale Distributors Logistics Providers Customers Information Flow Goods Flow Source: AMR, 2000 Logistics Providers

The Connected Supply Chain ProvidersManufacturersDistribut.Clients 12345

Types of Web Services 1 1.B2C Commerce or Wireless 2 2.Distribution Chain Services 3 3.Intra-company distributed systems services 4 4.Supplier Network Services 5 5.Services amongst suppliers

How to Implement?

Catalonian Pymes?  Dell is a large and sophisticated company.  The Dell systems are based on EDI  WS are 5-10 times cheaper then EDI  WS don‘t need technological sophistication

Providers Microsoft  Introducing.Net with all new Windows version. Bill Gates says that.Net is as important as the introduction of Windows.  „.Net“ is the base of Passport and many other services. IBM  Competition to M$, aligning all of its products with Web Services (Java, WebSphere)  „Web Services Toolkit“ released to the public domain

Players Basically Everybody  XML and WS is being adopted as the future standard for systems intercommunication  SAP uses WS as interface to its system  OMG, EAN, … Standardization Associations  ebXML, OASIS, OMG, EAN, …  Basically every industry association

The Future

Hype or Revolution  Java (successful) –Slow adoption (Back-Office) –Early support from many players Hype (Media) Adoption (Users)

Hype or Revolution  Webcasting “Marimba” (failure) –Fast adoption (Front-Office) Hype (Media) Adoption (Users)

Hype or Revolution  Web Services (???) –Very slow adaptation (Back-office) –Even more support than Java Hype Adoption

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