Services Based Collaboration Networks

1
Services Based Collaboration Networks

• R. Reddy, K. Srinivas, S. Reddy
• West Virginia University (USA)
• R. Mikkilineni
• enSanet, Inc.

2
Outline

• What is Services Based Collaboration?
• PPP/SST Paradigm
• Network as a Services Infrastructure
• Security and Trust Requirements
• Logical Message Sequence
• PPP/SST Framework
• Enabling Technologies and Standards
• Conclusion

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What is Services Based Collaboration?

• Service is an Agent-Person Continuum
• Services exist on the Network
• Services are discovered
• Services are composed via Signaling
• The composed service satisfies the goal of
  coalition
• Coalition is ephemeral just-in-time

4
Virtual Corporation

• Virtual Corporation exists as a series of
  ephemeral coalitions composed just-in-time
  through discovery and signaling.

5
PP/SST Paradigm

• Person/Agent
• Registration, discovery, contract and execution
  messages
• Purpose
• Goals and Terminating criteria
• Place
• Workspace ( a la eroom)

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PPP/SST Paradigm contd.

• Situation
• Viewed as a subtask/context
• Signaling
• Bringing together and tearing down coalition
  episode ( a la Call-setup in SS7 signaling)
• Transcript
• Document linking different situations
• Corporate Memory?

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Services Mediator
Situation Mediator
Place mediator
Services
VE Initiator
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PPP/SST Architecture
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PPP/SST Signaling
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An Example- Speedway Software

• Requirements Service
• Design/Specification Service
• Implementation Testing Service
• Documentation Service
• Training and Customer Support

11
An Example Virtual Course

• Course Design
• Specialist for each topic signaled in correct
  situation
• Grading Service
• Laboratory Service etc.
• A virtual university may be a collection of
  virtual courses!!!

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Issues

• Visibility of Services
• Negotiation
• Contracts
• Payments
• Legal/License issues
• Reliability/Redundancy

13
Issues contd.

• Composition Semantics
• Orchestration
• Adaptability to Infrastructure/devices

14
Enabling Technologies/Standards

• XML
• WSDL
• SIP
• BIZTALK
• .NET
• SOAP etc.

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Trust Requirements

• Authentication
• Intellectual Property Control (play once etc.)
• Payments
• Contracts

16
Relevant Trends

• Intelligence at the Edge
• P2P Computing

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Conclusion

• Fusion of Signaling and Service Networks will
  lead to a new generation of companies entirely
  based on network based collaboration