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J U P I T E R

J U P I T E R. Joint Usability Performability Interoperability Trials in Europe Main Results of EURESCOM P605 Peter Egloff (Deutsche Telekom Berkom). J U P I T E R. Technical data: Participants: AF , BT , DK, DT , FT, IT , NT, PT, RB

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J U P I T E R

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  1. J UPI T E R Joint Usability Performability Interoperability Trials in Europe Main Results of EURESCOM P605 Peter Egloff (Deutsche Telekom Berkom)

  2. J UPI T E R Technical data: Participants: AF, BT, DK, DT, FT, IT, NT, PT, RB Duration: 1. 2. 1996 until 28. 2. 1998 Effort: 315 MM

  3. The JUPITER Triangle U P I U <-> P: Conferencing Services U <-> I: Retrieval Services P <-> I: local / wide area ATM

  4. U TRIALS IN EUROPE P I • Experts from different areas • network: ISDN, local and • wide area ATM (link to JAMES) • multimedia conferencing services • retrieval services based on DAVIC • psychologists with good IT • knowledge and experience in • usability tests

  5. Interoperability U TRIALS IN EUROPE P I • conformance tests based on DAVIC 1.0 specification • proved interoperability of up to 4 systems using • MHEG-5 for scene objects • MPEG2 for audio/video • DSM-CC for control • Fixing of implementation bugs • Defects reports regarding • DSM-CC, MHEG,..

  6. Performability U TRIALS IN EUROPE P I • Relationship between user’s perception of the quality of service and the actual network performance • end-to-end delay has significant effect on user’s perception • not significant: application and protocol delay • significant delays: cell shaping, packetisation, video compression,...

  7. Performability U TRIALS IN EUROPE P I • Checklist for running MM-services over ATM • User’s task affects their perception of the service quality • Effect of network loss and delay depends on audio/video coding used • End-system can be bottleneck • Only ATM CBR or UBR connections can be recommended

  8. Usability U TRIALS IN EUROPE P I • Usability testing of MM conferencing and retrieval services • 19 recommendations related to MM retrieval services • 20 recommendations related to MM conferencing services • Guidance to design user interfaces in order to improve ease of use, learnability, efficiency, memorability, ...

  9. U TRIALS IN EUROPE P I Output • Final Deliverable consisting of 4 volumes covering main findings and usability, performability and interoperability trials • Video on usability testing • JUPITER leaflet • Guidebook to implementing broadband MM services • WWW information on JUPITER

  10. U TRIALS IN EUROPE P I Dissemination • Presentations at four EURESCOM seminars • Demonstrations of Interoperability of DAVIC compliant systems in New York and Geneva (Inter@ctive) • Five contributions to conferences • EURESCOM-COST248 workshop

  11. U TRIALS IN EUROPE P I A U P I Outlook • JUPITER II • 1 March 1998 - 30 September 1999 • 245 MM From JUPITER triangle to JUPITER square

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