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Perspectives

This document outlines various applications of tele-teaching, multimedia services, and mobile computing, emphasizing requirements for effective integration across diverse networks. It highlights the importance of service quality, adaptive videoconferencing technologies, and standards for mobile access to resources. Furthermore, it discusses the integration of security mechanisms and the role of modern middleware in facilitating seamless communication. The applications span educational contexts, corporate environments, and large-scale projects, showcasing the technologies that drive connectivity and collaboration in today's digital landscape.

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Perspectives

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  1. Perspectives

  2. XIII.2 Further application examples

  3. XIII.3 Tele-teaching WWW Server (Courseware) Lecture Internet / Scientific network / ISDN Cooperation in small groups Requirements: - Internet-/Intranet-Integration - Media-integration - Service quality => Multimedia and Tele-services Large image projection (Beamer, LCD-Display)

  4. XIII.4 Mobile Computing Production data Main office => Caching Maintenance technician Client ISDN Mobile access Requirements: - location independent communication - world-wide standards - very different performance and costs: GSM, ISDN, LANs Software-technical, automatic adaptation to each system environment Example: Access to picture data/compressed picture data/graphics/text

  5. XIII.5 Internet, Multimedia and Tele-services

  6. XIII.6 Internet-information services

  7. Internet-information services

  8. XIII.8 Internet and E-Commerce Advertising agency Client Marketing and Sales - Electronic Mail - Hypertext / WWW - Security aspects - Electronic/Multimedia Mail - Complex Documents - Hypertext/WWW - Delivery data, application forms - Electronic Mail Secure online- payments Engineering office - Complex documents - Online-videoconference - Cooperative work - Java Applets: dynamic loading of Code - XML (Extensible Markup Language) as exchange format for documents Automaker Bank

  9. XIII.9 Tele-teaching via Internet

  10. XIII.10 Tele-teaching / Tele-working: Modern Video-conference systems

  11. Next generation systems • Requirements: • adaptive, highly optimized and standard-conformant Videocodecs for different platforms  H.26x and MJPEG • “real time” transport system for different networks  IP/RTP, N-ISDN (H.320), (Fast-/Gigabit-)Ethernet, ATM and Wireless LANs • support of heterogenic environments corresponding to end-systems and networks • uniform, configurable and integrated control components which are based on established Middleware-Standards • consequent modular, freely configurable and object-oriented design • integration of security mechanisms corresponding to administration and also for video-transmission

  12. System example: VTToolkit • Video Transmission Toolkit:

  13. XIII.13 Mobile and Ubiquitous Computing

  14. XIII.14 Basic technologies

  15. XIII.15 Applied example: civil engineering, field work Large archives Video-conferences ISDN ATM Construction plans, urgent changes Construction Construction company A (Central Office) company A (Branch Office) Architect X.25 ATM ISDN Selected Construction plans Video-conferences GSM Construction supervisor GSM Material data, status data, deadlines building site Construction company B

  16. Associated infrastructure services Applications - Telematics - service (maintenance, field service) - integration of different devices in fabrication-environments, information systems or in household Middleware - adaptation - localization - supporting Software with numerous new special functions Networks - GSM, UMTS, IMT-2000, MBS - Wireless-LAN, Bluetooth, Hiperlan, 802.11, Ethernet - Networking of embedded devices

  17. Ubiquitous Computing • Mobile Devices ubiquitously • overlapping Mobile Networking • „Calm Technology“: processing procedures widely automatic and „invisible“

  18. Internet Scenario: fair visit Personal fair stall custodian corresponding to “user profile“ of the client Fair information system plans round tour between fair stalls Sensor checks Online-Ticket Internet- Ticketing; Planning fair round tour City information system points out the way to the fair Mobile Device buys Ticket -> Security requirements?? Remote Online Check-In to the Hotel; booking in the restaurant

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