1. Barriers to Pervasive Computing
Anupam Joshi
CSEE Department, UMBC

2. Hype vs Reality
In the early 90s, Sony came out with ??? Since then, “pervasive”/ ubiquitous/ mobile/ whatchamacallit computing has promised more than it can deliver, thus delaying adoption

3. UI Issues “good” interaction paradigms not available
Voice interfaces ?
Enhanced reality ?

4. WAN problems
Still don’t have a high speed WAN that is “pervasive”. Phone-line+Modem speeds are comparable or better, and are much more “pervasive”

5. Data Management Obvious problems have been solved
e.g. Multimedia transcoding, some content aggregation
Questions about scalability remain, especially with “indiscriminate” use of proxies or mobile agents

6. More Data Management Hard questions remain
Transactional data access, although initial work has been / is being done
Workflow
“Intelligent” offline content aggregation
Handling mobility, not just wireless access
State maintenance and transportation

7. Applications
Essentially creating wireless “clones” of wired applications
Little serious thought, except recently, to applications that are “native” to mobile scenario
The value add proposition
Ad-hoc systems, vicinity based information etc.