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The increasing complexity of modern Large-Scale systems and System-of-Systems (SoSs) makes their design and development extremely challenging. To face this difficulty new Modeling and Simulation techniques, methods, and tools are emerging and some of them take advantage of distributed simulation environments. In this context, the IEEE 1516-2010 - High Level Architecture (HLA) is a well-known and accepted...
We focus on dynamic model usability and utility, performed throughout system engineering. The dynamic model is designed in relation to the system use scenarios. We generate then automatically the static models (data model, component model) from the dynamic one. A dynamic functional modeling based method is proposed to generate automatically the static and the dynamic organic architecture of a system...
System specifications can be modeled using various types of notations and diagrams regarding applications of the particular model. In this paper, we present an overview of the existing solutions, focusing on UML, BPMN and DMN models and the diagrams provided by these notations. We perform a comparison of these approaches and provide examples of representing system requirements in these notations.
This paper presents a new approach for identifying unknown and/or unwanted states within a system of systems (SoS) architecture using a graphical representation of the event-based modeling language, Monterey Phoenix. The paper demonstrates how the graphical modeling tool can create a single model that contains a mix of human, system, and environmental events, all of which contain event attributes...
Cloud based technology heavily changed the way how Enterprise Resource Planning (ERP) systems are handled through the whole lifecycle. The previous release-by-release driven by main version change (from pre-alpha to gold release) was developed into a continuous release management. Business processes although remained the same, but how can be determined, which part of the software needs to remain untouched,...
This work presents a preliminary proposal of a simple architecture for the development of heterogeneous applications, in order to allow the interoperability of applications in digital TV, mobile and web, for its incorporation in IoT. An MDA-based architecture is presented to develop applications based on a high-level abstraction, for which a brief review of MDA concepts and the state of the art is...
Enterprise architecture supports enterprise transformation through model-based holistic descriptions that capture and share the knowledge, concepts, and relationships representing the enterprise. Although enterprise architecture models portray the gap between the as-is and to-be enterprise, they disregard the underlying aspects that together enact enterprise transformation. This paper proposes an...
Modeling the reasoning component of self-adapting systems including its context is a challenging task. Context feature models used in dynamic software product lines help to capture the capabilities of a software as well as the monitored context values. This enables the possibility to add constraints between the context and system features. In this paper, we present an adaptation logic architecture...
This work proposes a textual and graphical domain-specific language (DSL) designed especially for modeling and writing data and image processing algorithms. Since reusing algorithms and other functionality leads to higher program quality and mostly shorter development time, this approach introduces a novel component-based language design. Special diagrams and structures, such as components, component-diagrams...
Modelling and Programming are often used together in system development. However, typically there is a large difference between the handling of modelling parts and the handling of programming parts. This leads to the fact that the transition between the two is not easy, and important information is lost as well as extra information has to be provided when combining modelling and programming. This...
Users located on the cell edge suffer from low data rates due to interference and poor reception. The Coordinated Multipoint technology targets this problem but it imposes overhead on the network, which can result in degradation of the Quality of Service. The Direct CSI feedback to Elected Coordination station architecture minimizes such overhead, resulting in improved data rates. Here, we analyze...
Fast-paced innovation in the embedded systems domain puts an ever increasing pressure on effective software development methods, leading to the growing popularity of Model-Based Design (MBD). In this context, a proper choice of modeling languages and related tools — depending on design goals and problem qualities — is crucial to make the most of MBD benefits. In this paper, a comparison between two...
Service-oriented systems are often at the core of mission- or business-critical systems, and thus advanced quantitative analysis techniques are needed to assess, from the early development stages, whether or not the system accomplishes the stakeholder requirements and constraints. In this respect, in order to take advantage of the distributed nature of the considered systems, the use of distributed...
The ontological change, understood as the process that allows to represent, implement, maintain and propagate the update of an ontology, it is managed mainly from two perspectives: version control and ontological evolution. Among the alternatives proposed management is supported management in conceptual models, where abstraction implementation language used in the construction and deployment of ontology...
Cloud computing that is based on Infrastructure as a Services model, allows the system administrators to identify resources or services to deploy their applications. Selection of the most appropriate provider for a particular application is a difficult task as there are huge numbers of services offered by considerable number of providers that are not directly comparable and have similar functionality...
Model Transformations is the core of Model Driven Architecture; several works have been focused on transformations between the different models that compose the MDA approach: the Computation Independent Model (CIM), the Platform Independent Model (PIM) and the Platform Specific Model (PSM). In this paper, we propose a new method of transformations between CIM and PIM levels; this approach aims to...
The evolution of information systems requires the implementation of a high level of security to minimize the problems associated with these systems. Intrusion Detection Systems (IDS) play a very important role in the security of networks by detecting when an attack is happening, but most current IDS are generally centralized and suffer from significant limitations. This paper describes a new security...
The growing complexity of digital signal processing applications makes a compelling case for the adoption of higher-level programming models such as dataflow for the implementation of applications on programmable logic devices and many/multi-core embedded processors. Past research works have shown that raising the level of abstraction of design stages does not necessarily come at penalties in results...
This paper provides a number of recommendations for expressing the behavioral semantics of a digital health enterprise. This includes the specification of policies, processes and services, with a particular focus on the RM-ODP enterprise and computational concerns. We believe that these behavioral aspects are needed to complement well developed expression of information semantics. The paper is motivated...
Distributed parallel computing platform performs well in processing big data. However, due to the platform's complexity and distributed characteristics, it is hard to design and achieve. For example, during the platform's design phase, variations are unpredictable. To address these issues, a highly structured object-oriented framework for systematic modeling, which has high flexibility, reusability...
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