High quality of security is increasingly critical for applications running on heterogeneous distributed systems, where processors operate at different speeds and communication channels have different bandwidths. Although there are a few scheduling algorithms in the literature for heterogeneous distributed systems, they generally do not take into account of security requirements of applications....

An action scheme is proposed that reflects the cooperation with other autonomous database systems and other models of data repositories like file systems or object stores. It is provided by the operating system level to support this kind of heterogeneity. Its key feature is that the provided mechanisms for recoverability are designed in an orthogonal manner meaning that it is not presupposed to...

In modern object oriented computer systems the internal state of the entire system consists of the internal states of many objects probably distributed over a heterogeneous network of computers The man machine interaction in such an application is based on the visualization of states on one hand and the modi cation of states in combination with event generation on the other hand This paper desc...

In this paper we present an environment for the development of special purpose heterogeneous analysis and veriication tools, which is unique in 1) constituting a framework for the development of application speciic heterogeneous tools and 2) providing facilities for the automation of the synthesis process. Based on a speciication language that uniformly combines taxonomic component speciication...

The Information Power Grid (IPG) is emerging as an infrastructure that will enable distributed applications – such as video conferencing and distributed interactive simulation – to seamlessly integrate collections of heterogeneous workstations, multiprocessors, and mobile nodes, over heterogeneous wide-area networks. This paper introduces a framework for developing efficient collective communic...

Heterogeneous network-based systems are emerging as attractive computing platforms for HPC applications. This paper discusses fundamental research issues that must be addressed to enable network-aware communication at the application level. We present a uniform framework for developing adaptive communicationschedules for various collective communication patterns. Schedules are developed at run-...

InterWeave is a distributed middleware system that supports the sharing of strongly typed, pointerrich data structures across a wide variety of hardware architectures, operating systems, and programming languages. As a complement to RPC/RMI, InterWeave facilitates the rapid development of maintainable code by allowing processes to access shared data using ordinary reads and writes. To maximize ...

In the context of multidatabase systems and heterogeneous distributed database systems , it has been observed that autonomy of the component databases has to be violated in order to maintain traditional database and transaction properties. However, very little work exists that systematically analyzes (a) the semantics of autonomy and (b) the implications of autonomy vis a vis correctness specii...

The future distribute dsystems will be very heteroge ne ous They will consist of end computing systems with widely varying capabilities inter connected by networks which o er very di erent services Delivering data with a guarante edlevel of servic e is a real problem that re quir es both support at the network level integrated ser vices networks and a QoS Quality of Servic e man agement envir o...

The policies and mechanisms for migrating processes in a distributed system become more complicated in a heterogeneous environment, where the hosts may di er in their architecture and operating systems. These distributed systems include a large quantity and great diversity of resources which may not be fully utilized without the means to migrate processes to the idle resources. In this paper, w...