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KMi Seminars
Double talk
This event took place on Wednesday 20 August 2008 at 11:30

 
Dr Barry Norton Solutions Architect, Ontotext

Barry Norton, Ontology-based Behavioural Semantics for Business Processes

We present the Business Process Modelling Ontology, developed in the SUPER project, and a Behavioural Reasoning Ontology which confers process algebraic behavioural semantics on processes via ontology-based rules. This is based on previous work on giving compositional process algebraic semantics to the OWL-S process model, which led to the Cashew process model developed in the DIP project. As there the emphasis is on judging behavioural equivalences; on-going work concerns making such judgements via ontology-based reasoning.

Monika Solanki, Imperial College London: Towards Verifying Compliance in Agent-based Web Service Compositions

We explore the problem of specification and verification of compliance in agent based Web service compositions. We use the formalism of temporal-epistemic logic suitably extended to deal with compliance/violations of contracts. We illustrate these concepts using a motivating example where behaviours of participating agents are governed by contracts. The composition is specified in OWL-S and mapped to our chosen formalism. Finally we use an existing symbolic model checker to verify the example specification whose state space is approx 2^21 and discuss the experimental results.

 
KMi Seminars
 

Future Internet is...


Future Internet
With over a billion users, today's Internet is arguably the most successful human artifact ever created. The Internet's physical infrastructure, software, and content now play an integral part of the lives of everyone on the planet, whether they interact with it directly or not. Now nearing its fifth decade, the Internet has shown remarkable resilience and flexibility in the face of ever increasing numbers of users, data volume, and changing usage patterns, but faces growing challenges in meetings the needs of our knowledge society. Globally, many major initiatives are underway to address the need for more scientific research, physical infrastructure investment, better education, and better utilisation of the Internet. Within Japan, USA and Europe major new initiatives have begun in the area.

To succeed the Future Internet will need to address a number of cross-cutting challenges including:

  • Scalability in the face of peer-to-peer traffic, decentralisation, and increased openness

  • Trust when government, medical, financial, personal data are increasingly trusted to the cloud, and middleware will increasingly use dynamic service selection

  • Interoperability of semantic data and metadata, and of services which will be dynamically orchestrated

  • Pervasive usability for users of mobile devices, different languages, cultures and physical abilities

  • Mobility for users who expect a seamless experience across spaces, devices, and velocities