While not a silver bullet, the Defense Information Infrastructure (DII) Common Operating Environment (COE) is a measured, pragmatic approach to software development and integration that is tailored to the Department of Defense. The four basic principles of COE – interoperability, security, customer focus, and best value – are what drives the COE as it responds to past successes and seeks to emb...

When service sectors are a major driver for the growth of the world economy, we are challenged to implement service-oriented infrastructure as e-Gov platform to achieve further growth and innovation for both developed and developing countries. According to recent trends in service industry, it is clarified that main factors for the growth of service sectors are investment into knowledge, trade,...

The CM-2 is an example of a connection machine. The strengths and problems of this implementation are considered. Then important issues in the architecture and programming environment of connection machines in general are considered. These are contrasted with the same issues in MD multiprocessors and multicomputers.

Extensible programming languages and their compilers use highly modular specifications of languages and language extensions that allow a variety of different language feature sets to be easily imported into the programming environment by the programmer. Our model of extensible languages is based on higher-order attribute grammars and an extension called “forwarding” that mimics a simple rewriti...

Air combat modelling using graphical simulation is a powerful means for development and evaluation of tactics. However, large models are particularly expensive and time-consuming to maintain and modify. Multi-aircraft full mission man-in-the-loop simulators will provide an even more complex programming environment. Agent-oriented architecture provides a suitable software environment for the dev...

Our work in model-based analysis, diagnosis, and therapy of environmental systems reveals principled limitations in standard theories and techniques of model-based diagnosis. It becomes evident that they are (implicitly) tailored for diagnosing artifacts based on component-oriented modeling. When we deal with a natural or technical system that lacks a static structure comprising a fixed set of ...

Quality and complexity assessment are critical aspects in feature oriented software development. Feature oriented development is part of software product line methodology where software is framed using feature concept. In course of research; object oriented metrics are being used to assess the quality of feature model. But these metrics limit the complexity within the features and complexity ac...