Building self-optimized communication systems based on applicative cross-layer information

This article proposes the Implicit Packet Meta Header(IPMH) as a standard method to compute and represent common QoS properties of the Application Data Units (ADU) of multimedia streams using legacy and proprietary streams’ headers (e.g. Real-time Transport Protocol headers). The use of IPMH by mechanisms located at different layers of the communication architecture will allow implementing fine per-packet selfoptimization of communication services regarding the actual application requirements. A case study showing how IPMH is used by error control mechanisms in the context of wireless networks is presented in order to demonstrate the feasibility and advantages of this approach

Informational Support For Information Systems Governance: The Applicative Cartography Repository

Information systems play a critical role in supporting complex processes in modern organizations Nevertheless, organizations are constantly evolving due to external and internal pressures like regulatory developments, business evolution help organizations, and cost containment. It follows that organizational information systems must be agile in order to be aligned with organizations strategies and help organizations manage continuous change and overcoming problems induced by the pressures of their continuously changing environment. Therefore, agile information systems are a critical resource that modern organizations must govern in order to use it effectively. Many authors have noted in recent years that information systems urbanization is one of the most promising approaches to building agile information systems. The governance of urbanized information systems is a complex activity that requires important resources and a deep understanding of the nature of information systems. In particular, to be effective, urbanized information systems governance requires three types of resources: informational resources, software tools managing informational resources, and human resources using these resources to carry out the urbanized information systems governance activities. The applications cartography repository is among the most important informational resources of urbanized information systems governance. In this paper, we propose framework of applications cartography repository which takes into account both the structural and dynamic of information systems urbanization

Design Environments for Complex Systems

The paper describes an approach for modeling complex systems by hiding as much formal details as possible from the user, still allowing verification and simulation of the model. The interface is based on UML to make the environment available to the largest audience. To carry out analysis, verification and simulation we automatically extract process algebras specifications from UML models. The results of the analysis is then reflected back in the UML model by annotating diagrams. The formal model includes stochastic information to handle quantitative parameters. We present here the stochastic -calculus and we discuss the implementation of its probabilistic support that allows simulation of processes. We exploit the benefits of our approach in two applicative domains: global computing and systems biology

On the confluence of lambda-calculus with conditional rewriting

The confluence of untyped \lambda-calculus with unconditional rewriting is now well un- derstood. In this paper, we investigate the confluence of \lambda-calculus with conditional rewriting and provide general results in two directions. First, when conditional rules are algebraic. This extends results of M\"uller and Dougherty for unconditional rewriting. Two cases are considered, whether \beta-reduction is allowed or not in the evaluation of conditions. Moreover, Dougherty's result is improved from the assumption of strongly normalizing \beta-reduction to weakly normalizing \beta-reduction. We also provide examples showing that outside these conditions, modularity of confluence is difficult to achieve. Second, we go beyond the algebraic framework and get new confluence results using a restricted notion of orthogonality that takes advantage of the conditional part of rewrite rules

PRE-TRAINING HUMAN RESOURCES IN ROMANIAN PUBLIC ADMINISTRATION IN THE NEW KNOWLEDGE-BASED ECONOMY USING ELECTRONIC COMMUNICATION

The paper is structured in two parts: first part presents theoretical and methodological approaches concerning the advanced instruction systems by using electronic communication techniques and the second part contains applicative contributions regarding the achievement of an advanced instruction system by using electronic communication techniques. In the first think a synthesis has been made, comprising studies and researches related to the definition, the elaboration of the conceptual model and the theorization of the advanced instruction system notion by using electronic communication techniques, as well as reports concerning the present state of e-Learning systems, in view of turning to advanced instruction systems by using electronic communication techniques.iLearning, Knowledge Management, Information Technologies and Communication Platforms for Training, Fuzzy Techniques.

Just below the surface: developing knowledge management systems using the paradigm of the noetic prism

In this paper we examine how the principles embodied in the paradigm of the noetic prism can illuminate the construction of knowledge management systems. We draw on the formalism of the prism to examine three successful tools: frames, spreadsheets and databases, and show how their power and also their shortcomings arise from their domain representation, and how any organisational system based on integration of these tools and conversion between them is inevitably lossy. We suggest how a late-binding, hybrid knowledge based management system (KBMS) could be designed that draws on the lessons learnt from these tools, by maintaining noetica at an atomic level and storing the combinatory processes necessary to create higher level structure as the need arises. We outline the “just-below-the-surface” systems design, and describe its implementation in an enterprise-wide knowledge-based system that has all of the conventional office automation features