A large-scale interoperable database system operating in a dynamic environment should provide a uniform access user interface to its components, scalability to larger networks, evolution of database schema and applications, composability of client and server components, and preserve component autonomy. To address the research issues presented by such systems, we introduce the Distributed Intero...

Software evolution is the process of software change, most often change in software requirements. This paper presents a theoretical model for the evolution of component-based software, based on evolving interoperation graphs. The model assumes that each change consists of smaller granularity steps of change propagation, each of them being a visit to one specific component. If the component is m...

This document discusses the status of the Defuddle parser and recent work conducted as part of the “Innovative Systems and Software: Applications to NARA Research Problems” project. Robust sharing, reuse, and curation of data requires a clean separation of issues related to bits, formats, and logical content. To address these issues the Open Grid Forum is defining the Data Format Description La...

This paper describes an approach that broadens the capabilities of models used by command and control organizations to conduct effects based planning and operations by improving the understanding by which tactical actions affect the infrastructure and the civil environments in an area of operation. The premise is that the quality of the commodity services provided by the infrastructure is a mai...

This paper describes the GridWay Metascheduler and exposes its latest and future developments, mainly related to interoperability and interoperation. GridWay enables large-scale, reliable and efficient sharing of computing resources over grid middleware. To favor interoperability, it shows a modular architecture based on drivers, which access middleware services for resource discovery and monit...

The development of distributed multimedia systems can benefit from the availability of a flexible infrastructure able to support the interoperation between components, and capable of dynamically adapt itself to the system configuration. CORBAcompliant distributed multimedia applications permit a high level of accessibility, decentralization and interoperability with other components. However, a...

In order to model distributed expert systems at a proper level of granularity of knowledge, focusing on a common task ontology, inference primitive structure templates has been proposed so that they can interoperate with other expert systems to solve problems that cannot be solved alone. Furthermore, in order to modularize such expert-system deep interoperation at a semantic level, the cooperat...

In order to deal with the heterogeneous systems and variety of business data, business model and description of different enterprises in the interoperation process, a semantic interoperability framework for business collaboration is proposed in this paper. In the framework, a multi-facet ontology system supporting business collaboration is introduced to give unified understanding throughout int...