1. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Universität Leipzig Institut für Informatik Infrastruktur- und Anwendungs- architektur der e-business Strategie von T-Systems Dr. Jürgen Kratz, Member of the Managing Board T-Systems International GmbH 20.12.2002

2. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 T-Systems. Facts & Figures. Standorte national ca. 25 Hauptstandorte mit jeweils mehr als 200 Mitarbeitern in Deutschland Präsenz international in mehr als 20 Ländern Umsatz rd. 13,8 Milliarden Euro/Geschäftsjahr 2001 Mitarbeiter rd. 43.000, davon rd. 10.000 im Ausland (Stand Januar 2002) Kerngeschäft Vernetzung weltweiter Standorte unserer Kunden und Integration ihrer IT-Anwendungen Highlights Betrieb von 1,0 Mio. Arbeitsplätze unserer Kunden; Besitzer des zweitgrößten Computerzentrums der Welt

3. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Worldcom IBM/AT&T MCI/ED S Netz- /System- infrastruktur Kommunikations--/ Datendienste TransportAccess Netzwerkdien st-leistungen IT-Dienstleistungen e-Business / e-Solutions AT&T/ IBM AT&T/ IBM BT T- Systems Syncordia/Synteg ra !"§==Systems = AT&TIBM EDS British Telecom Anbieter Kontrolle über die gesamte Lösungsinfrastruktur Garantie von Verfügbarkeit und Response (End-to-End Trouble Shooting) Integration von IT- und TK-Dienstleistungen zu innovativen Business Solutions T-Systems und Wettbewerber. Konvergenzlösungen über alle Stufen aus einer Hand.

4. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 CIO Vision and Goals We support and further T-Systems value- enhancement efforts by providing internal ITC systems and management for company processes, company quality and company security Establishment and further development of Plan/Build/Run for -company processes -ITC(Information Technology and Communications) -Quality management -Company security e-Business Enabler for international performance, providing references for convergence solutions Use of synergy potential through uniform standards and systems Making company knowledge available to customers and employees Source: Strategy & Businessconcept Chap. 4 Idea Draft Commit last update 9.10.02

5. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 The IT Strategy derives from the Company Strategy and conforms to the Corporate IT Strategy. Attributes of the IT Architecture Attributes of the T-Systems Control and Business Model Group IT Strategy Attributes of the Legal Structure(s) Internationalisation Strategy for TC/IT and Convergence/ e-Business Company

6. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 10 Principles for the successful Reorganization of the TSI ITC Landscape The ITC strategy derives from the TSI company strategy and conforms to the corporate ITC strategy, which is examined from the perspective of profitability. The ITC architecture is based on the process model of T-Systems International GmbH. Central TSI and BL processes are mapped to a TSI core system. The standard application platforms in the core system network are SAP R/3 and Siebel; within the system network, an SAP R/3 HR system provides support for human resource management. ITC users gain access to the ITC systems via a personalized portal which is divided into three function blocks; Information, Communication and Application Services. The TSI system network is integrated into the corporate group via the Key Information Object architecture (KIO); responsibility for content and quality is established through the business processes. A T-Systems template, which is universal throughout the network, provides strong support for standardization. The system network is based on a harmonized ITC system and communications platform, thus optimizing forms of operation. The degree of internal ITC development depends on the importance of a given process for competitive strength and the availability of customizable standard solutions. ITC projects are controlled by the roadmap, which is standard throughout the company. Use what you sell. Idea Draft Commit last update 9.10.02

7. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 The IT Architecture is directed by the Process Model of T-Systems International GmbH. Process & Quality Management Security Management Legal Management IT & Infrastructure Marketing Leadership & Management Markets Portfolio Manage- ment Customers Delivery Management Sales & Customer Relationship Management Commercial Order Management Delivery Finance &Controlling Strategy & Planning Procurement Human Resources Management

8. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Findings: Focus on International Organization. IT system architecture international findings (reference: IT inventory worldwide) High priority country Further TSI entities No TSI entities Brazil: Brazil: One main system which was developed for Daimler Chrysler AG U.S.: U.S.: Wide range of Lotus applications. No full time IT responsible South Africa: South Africa: Extensive SAP R/3 (incl. HR, CO-PA and PS). e-HR and e-procurement planned Spain (Groupo Eltec): Implementation SAP MM planned Switzerland: Switzerland: Extensive SAP partly implemented (dsh), rest planned (incl. Multilink) France SoleriFrance Soleri/ France Siris:France Siris Project Convergence (Harmonization TS France) started. Extensive SAP implementation project partly started Austria: Austria: Implementation of central HR system planned. Diverse SAP expansions planned Netherlands: dSAP with MM, SD and PS SE Asia (Singapore, Philippines): debis and DTAG entities. Debis entities with own SAP. DTAG with Telekom SAP operated from DeTeCSM ItalyItaly: Extensive Adonix X3 implementation planned (Procurement, COM &Delivery Mgmt). SAP MM planned

9. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Target TSI International IT Template Architecture

10. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Security, User Admin, Single Sign ON (SSO), Public Key Infrastructure (PKI) Infrastructure Applications Telecommunications Services Desktop TSI-Portal General ServicesProcess-Specific Applications Enterprise IT Infrastructure Global Remote User Help Desk Mail Services Intranet Services Document Management Systems Application Templates Directory Services Middleware Desktop Standards Corporate Network Telekommunikation Services Workflow Idea Draft Commit last update 9.10.02

11. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Top TSI Portal Requirements n Standard, enterprise-wide portal with applications based on standards n Corporate identity (CI) n Up-to-date enterprise-wide information n Structured and navigable information presentation n Communication n Integrated interfaces for business processes n Tools for business process e-Transformation n Online and offline access from any location at any time: flexible workstation organization and environment. Idea Draft Commit last update 9.10.02

12. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 TSI Portal Target Technical Architecture Idea Draft Commit last update 9.10.02 View Model Portal (Personalization, Application Services, Web Single-Sign-On,...) Control Net / Transport Application* 1 2... Application* n Integration Layer (Integration Server, Integration Broker, Application Server,...) Basic Services (Fileservice, DBs, Gateways,...) Net & Transport Services (TGI/TGN, HTTP, SMTP, TCP/IP,...) Security *Applications in case of Internal-e are myWorkroom, mySystemNet, TSI PM Book,...)

13. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Security, User Admin, Single Sign ON (SSO), Public Key Infrastructure (PKI) General Services Infrastructure Applications Process-Specific Applications Telecommunication Desktop TSI-Portal Enterprise Technology & Tools Global Remote User Help Desk Mail Services Document Management Systems Application Templates Key Information Object (KIO) Enterprise Application Integration (EAI) & Business to Business (B2B)-Collaboration Desktop Standards Corporate Network Telecommunication Services Workflow Directory Services Idea Draft Commit last update 9.10.02

14. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 TSI currently has 2 logically and physically separate Networks (HITNET and dSHnet) dSHnet HITNET CommitLAN HITNET Location LAN VPN- Tunnel Dial-in network ACE-/Radius- System IT-Remote Client HITNET Workstation Location Workstation Any target system in HITNET Dedicated Target system in HITNET CommitLAN CommitLAN Current TSI network architecture 2002 Idea Draft Commit last update 9.10.02

15. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 Goal is to combine Networks into a Telekom Global Intranet (TGI) Dial-in Netw. Global -IT Remote Client ISDN,TDSL, analog,GPRS... Telekom Global Intranet Service- Area Firewall Access to TGI services Target Network Architecture TSI 2003 Central TGI ACE/ Radiussys. Central TGI Server TMO Net Workstation in TMO Net Any Target System in TMO Net TCOM Net Workstation in TCOM Net Any Target System in TCOM Net Workstation in TSI Net Any Target System in TSI Net TSI Net T-Online Net Workstation in T-Online Net Any Target System in T-Online Net Idea Draft Commit last update 9.10.02

16. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 TSI-wide integrated reporting is actually impossible HR TSI FC TSI Konzern FC Intern. tmacs FC BL-ES Sales TSI IP IT ReportingWirkdaten DatenübernahmeExtraktion (R)OLAP-daten/DWH Reportingtools/Präsentation SAPR/3HR Paisy Balanced Scorecard TSI Quality TSI etc. SAP- BW R/3 Web reporting Arcplan TSAM, KER DKK, ABBV SAP, SIS Excel AddIn SQL IV-KQR Tool WiW SAP BW Hyperion Enterprise Excel AddIn Marketing TSI CRM Siebel Analytics SL SI Arcplan Excel AddIn TSAM, KER DKK, ABBV SAP, SIS Hyperion Essbase R/3 Excel SQL Hyperion Essbase CF PU GUM SOP... Overview of processes and system coverage as is Idea Draft Commit last update 9.10.02

17. ======!"§==Systems= Dr. Jürgen Kratz Member of the Managing Board 20. Dezember 2002 A integrated reporting will be based on a common database HR TSI FC TSI Konzern FC Intern. tmacs FC BL-ES Sales TSI IP IT Reporting Wirkdaten DatenübernahmeExtraktion (R)OLAP-daten/DWH Reportingtools/Präsentation Balanced Scorecard TSI Quality TSI Marketing TSI CRM SL SI SAP BW Common Database (CDB) TSAM, KER, DKK, ABBV, SAP, SIS, SAP TSI, SAP SL, etc..... SAPR/3HR Paisy Hyperion Essbase CF PU GUM SOP... Siebel Analytics SAP BW SL Infosysteme z.B. SAP BW WiW TSI Navigator SAP BW IV-KQR Overview of processes and system coverage to be 2005 Idea Draft Commit last update 9.10.02