Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New models to improve reliability of virtual organisations

28.09.2006
Models of virtual organisations that operate within reliable and trustworthy parameters are being developed by researchers at the University of Southampton.

A virtual organisation is one whose members are geographically apart (usually working via networked computer applications) while appearing to others to be a single, unified organisation with a real physical location.

According to Professor Michael Luck from the University’s School of Electronics and Computer Science (ECS), as the market for virtual organisations grows and an increasing number of companies are represented by computerised agents acting on their behalf, there is a greater need to ensure that these agents behave responsibly.

In a project which aims to monitor the performance of the members of a virtual organization in terms of their trustworthiness, quality of service and contract compliance, Professor Luck and his team at Southampton have worked with Cardiff University, the University of Aberdeen and British Telecom on CONOISE-G (Grid-enabled Constraint-Oriented Negotiation in an Open Information Services Environment).

‘Creating and then effectively managing a virtual organisation in a dynamic environment poses significant research challenges,’ commented Professor Luck. ‘We need to draw inspiration and examples from human societies and apply them to computerised societies. Selecting different suppliers on the basis of reputation, using information from others to decide who to trust, and discounting information from unreliable sources in making judgments are all actions that need to take place in the interactions of computerized societies as much as in our normal daily lives.’

In seeking to address some of these challenges, the researchers have developed a system for the dynamic formation and operation of virtual organizations, drawing on scenarios such as that of an individual visiting London for the 2012 Olympic Games who requires a PDA to access various multimedia services.

They are currently in the process of implementing a prototype system which looks at issues such as trust and reputation, standardising communication between agents, and policing within a virtual organization, so that the impact of behaviour such as non-delivery of services by an agent is minimised.

Professor Luck commented: ‘The trustworthiness and reputation of agents are significant issues, especially in the context of virtual organizations in which the agents must rely on each other to ensure coherent and effective behaviour.

‘Only limited work has been carried out in this area so far, with the majority of developers adopting the stance of complete trust. This, however, avoids the complex issues which are crucial for the reliability and dependability of these systems and which our research aims to address directly.’

CONOISE-G is due to be completed this month.

Helene Murphy | alfa
Further information:
http://www.ecs.soton.ac.uk

More articles from Information Technology:

nachricht NASA CubeSat to test miniaturized weather satellite technology
10.11.2017 | NASA/Goddard Space Flight Center

nachricht New approach uses light instead of robots to assemble electronic components
08.11.2017 | The Optical Society

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Nanoparticles help with malaria diagnosis – new rapid test in development

The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.

Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Corporate coworking as a driver of innovation

22.11.2017 | Business and Finance

PPPL scientists deliver new high-resolution diagnostic to national laser facility

22.11.2017 | Physics and Astronomy

Quantum optics allows us to abandon expensive lasers in spectroscopy

22.11.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>