Video Communication Video Communication for Deaf People in for Deaf People in South AfricaSouth Africa

Deaf Community in South Deaf Community in South AfricaAfrica

Between 500 000 and 1.6m users of Between 500 000 and 1.6m users of SASL (South African Sign Language)SASL (South African Sign Language)

Disadvantaged communityDisadvantaged community Hearing disorderHearing disorder PovertyPoverty Illiteracy/Computer illiteracyIlliteracy/Computer illiteracy

Video communicationVideo communication

Video communication preferable to textVideo communication preferable to text Text messaging slow/unnatural (5-25wpm)Text messaging slow/unnatural (5-25wpm) Spoken/Signed communication (120-200 wpm)Spoken/Signed communication (120-200 wpm)

Accessibility?Accessibility?

Video communicationVideo communication SynchronousSynchronous

Intelligibility?Intelligibility? ‘‘Jerky’ Video hindrance to effective communicationJerky’ Video hindrance to effective communication Possible?Possible? Cost?Cost?

AsynchronousAsynchronous CheaperCheaper More robustMore robust

Research QuestionsResearch Questions

Is a gesture interface for asynchronous Is a gesture interface for asynchronous wireless video communication more wireless video communication more usable and intuitive than a standardusable and intuitive than a standard

(a) keyboard and mouse interface for (a) keyboard and mouse interface for PC?PC? (b) keypad interface for cellular phone?(b) keypad interface for cellular phone?

Gesture InterfaceGesture Interface Usability?Usability?

IntuitiveIntuitive SeamlessSeamless

MethodologyMethodology SASE (Socially Aware Software SASE (Socially Aware Software

Engineering)Engineering) Implementations:Implementations:

PCPC Cellular phone (Model? API?)Cellular phone (Model? API?)

Visualisation for high-level debuggingVisualisation for high-level debugging

ConclusionConclusion Have positive impact on Deaf Community Have positive impact on Deaf Community

of Cape Townof Cape Town

Case study for SASE modelCase study for SASE model

Contribute to ICT solutions in the Contribute to ICT solutions in the developing worlddeveloping world