Dr. M. Schlottke Common Description of Web Services Source: P. Gerbert, 2002 Web Services allow to establish B2B e-commerce on the fly Web Services allow.

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1 Dr. M. Schlottke Common Description of Web Services Source: P. Gerbert, 2002 Web Services allow to establish B2B e-commerce on the fly Web Services allow software to build itself into applications on the fly Web Services make integration easier Web Services extend the lifetime of legacy applications Web Services allow to deliver software as a service Web Services extend software to new (e.g., mobile) access devices Web Services increase the productivity of software development Web Services allow machines to interact with machines over the Internet (HTML for Silicon-based life forms)

2 Dr. M. Schlottke Redundancy Alternatives Source: FSC, 2003 Middleware Application Operating System Distributed Middleware Middleware Application Distributed Operating System & Hardware Application HW OS Distributed Middleware HW OS MW Distributed Application

3 Dr. M. Schlottke Waves of Dynamic e-Business Description: Value creation by the integration of heterogeneous internal systems Early Adopter Segments: Financial services Telecoms Extension of automated processes to external business partners in existing networks Hub-dominated business networks -Vertical: Automotive, electronics, retail/consumer goods -Horizontal: logistics, financial services Continuous flexibility for modifying business relationships Potentially leading to on the fly processes Commodity trading Internal Integration e-Enablement of Business Networks Fully Dynamic e-Business

4 Dr. M. Schlottke Transaktionskette Client Anwendungs- server Datenbank- server Datenbank Ziele Zugriffskontrolle für Transaktion Integrität und Vertraulichkeit der Transaktion und Daten Nichtablehnbarkeit der Transaktion Schwachpunkte Zugriff auf Transaktion Lauschangriffe Zugriff aus Server / Mainframe Zugriff auf Datenbank Ungeschützte Daten Zugriff auf Kontrolle Zu verschlüsselndes Protokoll

5 Dr. M. Schlottke Landscape for Web Services Source: The McKenna Group, 2002 I IV III II Enabling Technology Products Application Services SBC Verizon Symantec Storage Networks ADP EDS IBM GS Accenture Peoplesoft SAP Oracle Microsoft CA IBM BMC Veritas Telcos MSPs Outsourcers / BP Managers System Integrators Vertical Applications Horizontal Applications Security Storage Management Systems/Network Management Enabling Service Providers Grand Central Flemenco Slam Dunk Pluggable Web Services Microsoft Bowstreet ASPs, MapQuest Tools/EAI IBM, BEA, SUN CapeClear, IONA, AltoWeb Utility Services IBM Verisign

6 Dr. M. Schlottke Availibility Estimates Source: FSC, 2003 SMP Single-Node > 99.9 % SMP Failover-Cluster > 99.99 % SMP RTP-Cluster (Load-Sharing) > 99.999 % 99.9 %8 h outage / year 99.99%1 h outage / year 99.999%5 Min outage / year Switchover time depending on the database: < 30 min Switchover time depending on the database: < 1 min

7 Dr. M. Schlottke Source: IDC, 2002 Investitionen in IT-Sicherheit zur Zeit in den nächsten 12 Monaten keine Investitionen

8 Dr. M. Schlottke Herkunft der Computer-Attacken Source: CSI/FBI, 2002 1999 2002

9 Dr. M. Schlottke Source: CSI/FBI, 2002 Ausgangspunkt für Computerattacken 1999 2002

10 Dr. M. Schlottke Eingesetzte Sicherheitstechnik Source: CSI/FBI, 2002 1999 2002