of code to reduce network latency. It allows applications to migrate from host to host without sacrificing execution time during the migration phase. We show that the performance of application streaming largely depends on the component migration strategies deployed. We implemented one of the more

predation danger on migration strategies of sandpipers. – Oikos 103: 303–319. We examine the potential selective importance of predation danger on the evolution of migration strategies of arctic-breeding calidrid sandpipers. Adult calidrids truncate parental care for reasons not obviously related

different platforms for mobile agents' design have been used to achieve crucial networking tasks, such as routing. This paper contributes to the ongoing research by evaluating formal agent migration techniques, being one of the most important aspects to consider when designing mobile agent

a preemptive migration policy that requires no hand-tuned parameters. We used a trace-driven simulation to show that our preemptive migration strategy is far more effective than remote execution, even when the memory transfer cost is high.

, which is often not tolerable in practice. This paper introduces advanced mi-gration strategies for coping with non-compliant instances in the context of process change such that they can benefit from future process type changes on the one hand, but do not run into soundness problems on the other hand

Innovation in platform industries, including mobile telecommunications, has a great impact on societies and economies; hence a migration from an existing platform to the subsequent one should be progressed under careful forecasting, weighed scenarios and strategies that encompass a broad view

Mobile agent technology has received a rapidly growing attention over the last few years. A number of mobile agent systems are under development in academic as well as industrial environments, there are already various moves to popularize and standardize mobile agent facilities and architectures. It has been argued that mobile agents provide certain advantages as compared to traditional approaches in terms of providing facilities like software-distribution on demand at reduced communication costs, better support for asynchronous tasks, and scalibility due to dynamic deployment which is based on a taxonomy of mobility. The employment of mobile agents has been particularly attractive in applications like information retrieval in widely distributed heterogeneous environments, network management, electronic commerce and in mobile computing. Inspite of all this growing interest and e orts the agent technology is in a fairly early stage and a number of technical problems should be solved in order to make this new technology a commercial success. These open problems

Anno Accademico 2011-2012“So long, and thanks for all the fish!” The hitchhiker’s guide to the galaxySommario Il protocollo di rete IPv6 è una delle tecnologie più sottovalutate e rimandate della storia informatica. L’abbondanza di indirizzi IPv4 ha sempre rilegato la migrazione ad IPv6 nell’angolo delle cose da fare, ma il 2012 potrebbe rappresentare una svolta. L’Autorità che regolamenta l’assegnazione degli indirizzi IP (IANA) ha terminato nel 2011 il pool di indirizzi IPv4 disponibili, e quest’anno (2012) la stessa sorte è toccata ai Registri Internet Regionali (RIR) RIPE e APNIC. Come se ciò non bastasse l’aumento vertiginoso degli acquisti di tablet e cellulari di ultima generazione pone una ulteriore nota di gravità, in quanto presto la domanda di connettività Internet superererà la disponibilità di indirizzi IPv4. Soluzioni come Network Address Translation saranno utili in un primo step per gestire la situazione, ma la soluzione non è ovviamente scalabile nel lungo periodo. Giganti come Google e Facebook si sono portati avanti e sono diventati i punti di riferimento di questa

Abstract—The bandwidth of real-time capabale bus systems like FlexRay or CAN is not sufficient to cope with the requirements of future applications in automotive systems any more. As a remedy, Ethernet supplements the communication technologies available for the data exchange. However, when used with a bandwidth of 100 MBit/s and more, Ethernet is based on a star topology and, thus, introduces a complete new way to layout the communication topology. Nonetheless, it must be compatible with the sub systems of former generations of the vehicle as a complete restructuring of the topology is extreme costly and error prone. The work at hand introduces a design space exploration that enables to find E/E architecture layouts being suitable trade-offs between monetary costs and a high similarity to the predecessing generation. I.

Legacy migration strategy is an important factor when carrying out an IS (information system) project. This paper is based on an e-business project funded by European Commission in which web-based tools are integrated with costly and mission-critical legacy information systems. After a literature