As enabling technologies such as Grid, Web Services, Semantic Web, and Peer-to-peer computing etc. are rapidly becoming mature, the Internet and the Web have become a powerful computing platform with a number of new features such as dynamic and autonomous resources. Consequently, software engineering is now facing a tremendous challenge of developing more powerful but also much more complex software systems running in such dynamic environments.
The past few years has seen a rapid growth of research activities on how to meet the challenge so that such Internet/Web-based software systems can be developed efficiently with high quality. As a result agent-oriented software development methodologies have been proposed and advanced.
IOS Press published a special issue of the journal Multiagent and Grid Systems: Agent-oriented Software Development Methodologies. It includes a number of high quality papers from leading researchers in the area and covers a wide range of aspects of the emerging new methodology, which include meta-models, process models, languages, tools as well as applications in various domains. These papers present a snapshot of the current state of art. For readers who are not familiar with the topic, an introduction to these papers and a brief discussion of their backgrounds in a uniform framework can be found in the editorial by the guest editor Prof. Hong Zhu.
Astrid Engelen | alfa
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
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Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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