1 / 17

Quality of Semi-Synchronous Bridged Multi-modal Internet Protocol Communication

Quality of Semi-Synchronous Bridged Multi-modal Internet Protocol Communication. A Social Temporal Addition to Quality of Service Propagation Metrics via Critical Action Research in South Africa William D. Tucker PhD student @ UCT with CVC Senior Lecturer @ UWC with BANG.

tomas
Download Presentation

Quality of Semi-Synchronous Bridged Multi-modal Internet Protocol Communication

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Quality of Semi-Synchronous Bridged Multi-modal Internet Protocol Communication A Social Temporal Addition to Quality of Service Propagation Metrics via Critical Action Research in South Africa William D. Tucker PhD student @ UCT with CVC Senior Lecturer @ UWC with BANG

  2. Semi-synchronous Bridged Multi-modal Communication • Internet-based communication allows for multimedia, or multiple modalities • Modalities are text, voice, video and Virtual Reality • Bridging allows for conversion between communication modalities • Bridging introduces additional delays • These delays force real-time services, like talking on the phone, to become “almost” real-time, or semi-synchronous William D. Tucker Computer Science UCT & UWC

  3. Research Questions Are current views about network delay sufficient to explain why so many people are using semi-synchronous services like email and Instant Messaging? Would people use and pay for bridging services when they involve so much delay? Is there a social aspect involved that makes people want to use bridging services despite the inherent delay? How do we measure and cater for this social phenomenon with software design? William D. Tucker Computer Science UCT & UWC

  4. Motivation and Relevance • Current network management techniques do not really consider the end user of the system • We introduce a notion called Communication Quality that expands on the accepted framework • Include a social angle to delay measurement • Addresses bridged services in “almost” real-time • Includes end users in the measurement of service quality and therefore in the design of the services they actually require and will use William D. Tucker Computer Science UCT & UWC

  5. Research Hypothesis • There exists a social component to bridged communication that impacts Communication Quality in addition to, and more significantly than, accepted views on network service delay. • Further, this social component is a measurable phenomena William D. Tucker Computer Science UCT & UWC

  6. Methodological Approach • The addition of a social component to standard delay measurements requires a “hybrid” approach • A hybrid of Computer Science and Social Science • Combine Critical Action Research (CAR) with the Software Development Life Cycle (SDLC) William D. Tucker Computer Science UCT & UWC

  7. Critical Action Research • Do not hide the research objectives from the target community • Determine end user needs with open and continuous interaction • Involve end users in the software process by getting constant feedback • Use that feedback to create usable software • Learn from the end users how to improve and measure Communication Quality William D. Tucker Computer Science UCT & UWC

  8. More Research Questions • What are semi-synchronous services? • What are bridged services and how do we build them? • Can social phenomena overcome delay problems in these services? • Can CAR help us build usable services? • Can CAR determine how to measure this social component? William D. Tucker Computer Science UCT & UWC

  9. How To Answer The Research Questions • Demonstrate general applicability with three applications • Distance Learning tools • Rural & urban SMME applications • Telephone systems for the Deaf • Target CAR to • The software design process • Human Access Points (HAPs) for effectiveness • Learn from CAR how to • Build these services • Measure the social component William D. Tucker Computer Science UCT & UWC

  10. Anticipated Results • The social component is more significant than current views on delay • CAR will yield a “get what you pay for” model for bridged services • CAR will yield an understanding and measurement of this social component William D. Tucker Computer Science UCT & UWC

  11. Testing Strategy and Implications • Use a Null Hypothesis to show that the current accepted view is more significant than the social approach to measuring Communication Quality • If the Null Hypothesis is proven correct, then the current approach is justified in the context of Internet Protocol services • If the social component is shown to be the primary factor of system design, then the current approach is deficient and must be changed. William D. Tucker Computer Science UCT & UWC

  12. Bibliography and Previous Systems • The closest service is Universal Messaging, but it is not a real-time service • We have used targeted CAR to create several Deaf Telephony prototypes (Glaser) • Rural and Urban Distance Learning and SMMEs community telecentres failed due to lack of CAR (www.bridges.org) • Social aspect of “place” as opposed to space (Dourish) William D. Tucker Computer Science UCT & UWC

  13. Unique Contribution(s) • Addition of social temporal component to Quality of Service temporal metrics to define Communication Quality • Targeted Critical Action Research via Human Access Points to build bridging services for South Africa • Use of Critical Action Research to measure the extent of social effect on Communication Quality William D. Tucker Computer Science UCT & UWC

  14. The Bigger Picture • Towards Real-time Universal Messaging • InfluenceTelecommuncations policy in South Africa (and the rest of the 3rd world) • Leap frogging the 3rd world into the 1st world • Blend of social and computer science to yield innovative telecommunications services • Communications applications and platforms that bridge and scale across multiple Digital Divides (communication modality, networks, enduser capabilities, user interface, etc.) William D. Tucker Computer Science UCT & UWC

  15. Related Work (in progress at UCT) • SoftBridge Platform – John Lewis • Wireless VoIP Community Access Points – Marshini Chetty • Laid Back Computing – Richard Schroder • Deaf Telephony – Meryl Glaser William D. Tucker Computer Science UCT & UWC

  16. Related Work (in progress at UWC) • Hand-held Fast-track Feedback & Presence – Adesemowo Kayode • Hybrid Text/Voice Web Board – Anita Benjamin • Handheld VR for QoS Management – Clement February • SoftBridge over Softswitch – Tao Sun • COLLAN – Tania Paulse William D. Tucker Computer Science UCT & UWC

  17. Links for more Information • www.cs.uct.ac.za/~btucker • www.cs.uct.ac.za/cvc • www.cs.uwc.ac.za/~btucker • www.cs.uwc.ac.za/bang William D. Tucker Computer Science UCT & UWC

More Related