Transcript 32Meinkoehn

P704 Network Computing
Future Internet Services
Jens Meinköhn
Deutsche Telekom Berkom GmbH
AIMS Workshop
1
Heidelberg, 9-11 March 1998
Overview
• Motivation & Background
• Tentative Definition
• Application Areas
• P704 Approaches to Network Computing
• Conclusions
• Future Work
AIMS Workshop
2
Heidelberg, 9-11 March 1998
Motivation & Background
P704 “Network Computing”
• start date January 1997, end date April 1998
• partners: DT, BT, IT, FT, OG
• budget: 90MM
• re-focus on Network Computing
AIMS Workshop
3
Heidelberg, 9-11 March 1998
Motivation & Background
Requirements on future Internet services:
• personalisation
• support of user mobility and terminal adaptation
• ubiquitous access (network, location, terminal)
• on-demand service combination/integration
• ease of use
• online/off-line mode
• support of Internet protocols
AIMS Workshop
4
Heidelberg, 9-11 March 1998
Motivation & Background
Network Computing offers the potential of meeting
requirements, but
• definition is completely open!
• lots of marketing hype
• multitude of technical approaches are viable
AIMS Workshop
5
Heidelberg, 9-11 March 1998
Motivation & Background
Consequence for P704:
• provide state-of-the-art overview
• explore different technical approaches
• identify application areas of interest
• prototypical implementations
AIMS Workshop
6
Heidelberg, 9-11 March 1998
Tentative Definition
Original Network Computer (NC)
• propagated by Sun Microsystems and others
• “thin” client device
• Java as supporting language
• applications are downloaded as Java applets from “the net”
• paradigm shift from client/server to NC
• main objective: reduce cost of ownership
AIMS Workshop
7
Heidelberg, 9-11 March 1998
Tentative Definition
Network Computing services are...
• network-based services
• downloaded on demand (application/client)
• independent of location/type of terminal
• capable of integrating several services
• usable in both online/off-line mode
• compliant to Internet protocols (TCP/IP, HTTP)
• ...
AIMS Workshop
8
Heidelberg, 9-11 March 1998
Application Areas
Application areas of interest are
• Communicative Services
• Interactive Multimedia Services
• Electronic Commerce
• Personal Information Management
• Information Services
• Repository Services
• ...
AIMS Workshop
9
Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
BT: Service Adaptation
Main features:
• Java-based flexible service provisioning
• support for range of low-cost, “thin” devices
• home banking, travel assistance, ...
Main benefits:
• ease of service administration
• mobility support through terminal independence
• incorporation of legacy systems
AIMS Workshop
10
Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
IT: Personal Information Management
Main features:
Main benefits:
• Java-/ActiveX-based
• ease of administration
• Voice, Fax, Email, SMS,
Archiving, office tools, ...
• service integration
• conversion functions
• interface with workgroup
and workflow applications
• personalisation
• “Universal Mailbox”
• mobility support through
terminal independence
• authentication (smart card,
protocol)
AIMS Workshop
11
Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
FT: Service Adaptation
Main features:
Main benefits:
• proxy for adaptation to
terminal type
• ease of use
• support for “thin” devices
• mobility support through
terminal independence
• document pre-fetching/caching
• document adaptation
AIMS Workshop
12
Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
DT1: Interactive Multimedia Services
Main features:
Main benefits:
• Java-based
• easy replay of streamed
contents, e.g. video
• integration of Internet/DAVIC
• download of presentation
system or MHEG engine on
demand
• mobility support through
terminal independence
AIMS Workshop
13
Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
DT2: Electronic Commerce
Main features:
Main benefits:
• agent-based
• ease of administration
• marketplace metaphor
• service integration and
combination on demand
• online/off-line mode
• download on demand
• mobility support through
terminal independence
• incorporation of legacy systems
AIMS Workshop
14
Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
DT2: Electronic Commerce - The Marketplace Metaphor
Manager
Access
Software
: stationary manager agent
: stationary provider agent
: mobile customer agent
ISDN/GSM
TCP/IP
Manager
Network
Security
Fault
Configuration
Performance
Accounting
AIMS Workshop
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Heidelberg, 9-11 March 1998
P704 Approaches to Network Computing
DT2: Electronic Commerce - Travel Assistant
Manager
Access
Software
: stationary manager agent
: stationary provider agent
: mobile customer agent
ISDN/GSM
TCP/IP
Manager
Network
Car Rental
Train
Security
Fault
Configuration
Airplane
Hotel
Performance
Accounting
AIMS Workshop
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Heidelberg, 9-11 March 1998
Conclusions
Network Computing has potential for becoming new
service paradigm:
• straightforward benefits, e.g. adaptation, personalisation, on-demand integration, ease of administration
• combination of application areas holds high commercial
promises, e.g. Electronic Commerce & Smart Home
AIMS Workshop
17
Heidelberg, 9-11 March 1998
Future Work
For maximisation of effect/revenue of Network Computing
services, interoperability is the key
• establish set of NC services with high commercial
potential (P704)
• services provided in heterogeneous, autonomous domains
• exchange of security, accounting and personal information
• NC service combination, end-to-end NC service usage
• personalisation
• language adaptation
AIMS Workshop
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Heidelberg, 9-11 March 1998