Los Alamos National Laboratory’s Tecoiote Framework is used in conjunction with other libraries by several physical simulations. This paper briefly describes the design and use of Tecolote’s component architecture. A component is a C t t class that meets several require ments imposed by the framework to increase its reusability, configurability, and ease of replacement. We discuss both the moti...

In the context of knowledge-based systems interacting with dynamic or even real time processes, experts need to express domain specific relations in a natural way. We thus propose an expert language and a C++ implementation of these relations as first-class objects. The relations may have associated constraints such as multiplicities or any predicate expressing a necessary condition. The focus ...

The building behaviour of termites has previously been modelled mathematically in two dimensions. However, physical and logistic constraints were not taken into account in these models. Here, we develop and test a three-dimensional agent-based model of this process that places realistic constraints on the diffusion of pheromones, the movement of termites, and the integrity of the architecture t...

Combinations of C++ features, like inheritance, templates, and class nesting, allow for the expression of powerful component patterns. In particular, research has demonstrated that, using C++ mixin classes, one can express layered component-based designs concisely with efficient implementations. In this paper, we discuss pragmatic issues related to component-based programming using C++ mixins. ...

The successful assembly of large programs out of software components depends on modular reasoning. When the linking of component code is modular, components can be compiled and type checked separately, deployed in binary form, and are easier to reuse. Unfortunately, linking is not modular in many mainstream OO languages such as Java. In this paper we propose an intuitive and formal framework fo...

This paper describes an experiment in the development of a small piece of software in both the languages C and C + + in a university setting. The C+ + codes were found to he more modular than the corresponding C codes. Some of the other effects of C++ on program quality are very briefly discussed. The paper also discusses some of the errors that C programmers may make as novice C++ programmers,...

the necessity and importance of teaching pragmatics has come to light by many researchers (e.g. rose & kasper, 2001). due to the consensus over the need to teach pragmatic competence, the main issue now centers on the question of how we should teach this competence in the most effective way. consistent with this line of research, the present study aimed to investigate the effectiveness of d...