Abstract Platform and Transformations for Model-Driven Service-Oriented Development

In this paper, we discuss the use of abstract platforms and transformation for designing applications according to the principles of the service-oriented architecture. We illustrate our approach by discussing the use of the service discovery pattern at a platform-independent design level. We show how a trader service can be specified at a high-level of abstraction and incorporated in an abstract platform for service-oriented development. Designers can then build platform-independent models of applications by composing application parts with this abstract platform. Application parts can use the trader service to publish and discover service offers. We discuss how the abstract platform can be realized into two target platforms, namely Web Services (with UDDI) and CORBA (with the OMG trader)

Applying Model Driven Engineering Techniques and Tools to the Planets Game Learning Scenario

24 pagesInternational audienceCPM (Cooperative Problem-Based learning Metamodel) is a visual language for the instructional design of Problem-Based Learning (PBL) situations. This language is a UML profile implemented on top of the Objecteering UML Case tool. In this article, we first present the way we used CPM language to bring about the pedagogical transposition of the planets game learning scenario. Then, we propose some related works conducted to improve CPM usability: on the one hand, we outline a MOF solution and an Eclipse GMF solution instead of the UML profile approach. On the other hand, we propose some explanations about transforming CPM models into LMS compliant data, and tool functionality

Cyber-applications as gateway to data-rich digital earth systems

The underlying vision of the Digital Earth (DE) calls for applications that can embed vast quantities of geo-referenced data and allow users to study and analyse of our planet. Since the declaration of this vision in the late 90s, a significant number of DE data-sets have been created by the industry, governments, non-governmental organisations and individuals. An overwhelming majority of the successful applications that use DE data-sets has its end-user applications running on the desktop. While these applications are great tools, they remain inaccessible to the community as a whole. In this paper, we present a framework for the development of cyber-applications. We define an abstract architecture for cyber-applications based on the model-view-controller paradigm, which allows the dynamic inclusion of functional and data components into its execution engine at run-time. We define the operational characteristics of cyber-applications. We also specify the interface of pluggable components to the architecture. Finally, we demonstrate the appropriateness of the abstract architecture by means of a case stud

Feature interaction in composed systems. Proceedings. ECOOP 2001 Workshop #08 in association with the 15th European Conference on Object-Oriented Programming, Budapest, Hungary, June 18-22, 2001

Feature interaction is nothing new and not limited to computer science. The problem of undesirable feature interaction (feature interaction problem) has already been investigated in the telecommunication domain. Our goal is the investigation of feature interaction in componet-based systems beyond telecommunication. This Technical Report embraces all position papers accepted at the ECOOP 2001 workshop no. 08 on "Feature Interaction in Composed Systems". The workshop was held on June 18, 2001 at Budapest, Hungary

ID2.1 Initial Requirements Report

This internal deliverable contains two main parts: 1. Functional Requirements for the TENCompetence integrated system (which includes the descriptions of the high level use cases and the main components of the system) 2. Non Functional Requirements for the TENCompetence inte-grated systemThe work on this publication has been sponsored by the TENCompetence Integrated Project that is funded by the European Commission's 6th Framework Programme, priority IST/Technology Enhanced Learning. Contract 027087 [http://www.tencompetence.org

Towards a maintenance semantic architecture.

International audienceTechnological and software progress with the evolution of processes within company have highlighted the need to evolve systems of maintenance process from autonomous systems to cooperative and sharing information system based on software platform. However, this need gives rise to various maintenance platforms. The first part of this study investigates the different types of existing industrial platforms and characterizes them compared to two criteria namely : information exchange and relationship intensity. This allowed identifying the e-maintenance architecture as the current most efficient architecture. despite its effectiveness, this latter can only guarantee technical interoperability between various components. Therefore, the second part of this study proposes a semantic-knowledge based architecture, thereby ensuring a higher level of semantic interoperability. To this end, specific maintenance ontology has been developed

Agnostic cloud services with kubernetes

Dissertação para obtenção do Grau de Mestre em Engenharia Informática e de ComputadoresA computação na nuvem é frequentemente associada a restrições de dependência de fornecedor (Vendor Lock-In), motivado pelas diferentes tecnologias e implementações proprietárias que cada fornecedor de serviços em nuvem estabelece. Estas restrições consistem na dependência de um cliente relativamente a determinado fornecedor, o que dificulta a transição para outro fornecedor. Num contributo para uma Nuvem Agnóstica, o desafio descrito neste trabalho consiste na definição de um modelo de implantação e gestão do ciclo de vida de elementos computacionais em contexto de Nuvem. Por conseguinte, o objetivo do trabalho centra-se no desenvolvimento de um modelo que desacople a implantação e a gestão de sistemas informáticos do fornecedor de Nuvem, permitindo que sejam executados de forma agnóstica em diferentes plataformas de Nuvem. Neste âmbito, recorrer-se á a contentores, enquanto solução eficiente e padronizada de implantação de serviços computacionais em diferentes infraestruturas. Adicionalmente, pretende-se que o modelo automatize a geração de ficheiros de implantação, definindo as condições de execução do(s) serviço(s). Atualmente, as plataformas de orquestração de contentores são importantes aliados das organizações, sendo responsáveis pela gestão da implantação e configuração dos sistemas informáticos formados por múltiplos contentores. Existem diversas plataformas que surgem neste contexto, capazes de monitorizar o desempenho e controlar dinamicamente as configurações dos sistemas. Um exemplo paradigmático é a plataforma Kubernetes, que emerge como um standard aberto para serviços de Nuvem,cujo componente Cloud Controller Manager contribui para a abstração de fornecedores de Nuvem. Neste sentido, é considerada uma contribuição valiosa para atingir um modelo agnóstico de Nuvem. O sistema desenvolvido é validado através da implantação de aplicações (sistemas xi xii informáticos) contentorizadas, em múltiplos fornecedores de serviços em Nuvem, públicos ou on-premises (locais). Para este efeito, o quadro Informatics System of Systems é adotado, enquanto validador, como o modelo apropriado para estruturar e organizar os artefactos tecnológicos heterogéneos que podem ser considerados.The vendor lock-in concept represents a customer’s dependency on a particular supplier or vendor, eventually becoming unable to easily migrate to a different provider. Cloud computing is frequently associated with vendor lock-in restrictions, motivated by the proprietary technological arrangements of each provider. This work proposes an agnostic cloud provider model that addresses such challenges, focusing on the establishment of a model for deploying and managing computational services in cloud environments. Concretely, it aims to enable informatics systems to be executed agnostically on multiple cloud platforms and infrastructures, thereby decoupling them from any cloud provider. Moreover, this model intends to automate servisse deployment by defining and generating the running configurations for the services.Within this context, container technology is deemed as an efficient and standard strategy for deploying computational services across cloud providers, promoting the migration of informatics systems between vendors. Additionally, container orchestration platforms, which are becoming increasingly adopted by organizations, are essential to effectively manage the life-cycle of multi-container informatics systems by monitoring their performance, and dynamically controlling their behavior. In particular, the Kubernetes platform, an emerging open standard for cloud services, is proving to be a valuable contribution on achieving service agnostic deployment, namely with its Cloud Controller Manager mechanism, helping abstracting specific cloud providers. As validation for the proposed approach, it is intended to prove the model’s adaptability to different services and technologies supplied by heterogeneous organizations through the deployment of containerized applications (informatics systems) in multiple cloud service providers, public or on-premises. For this purpose, the Informatics System of Systems framework is adopted as a validator for structuring and organize heterogeneous technology artifacts from different suppliers.N/

Applying Model Driven Engineering Techniques and Tools to the Planets Game Learning Scenario

CPM (Cooperative Problem-Based learning Metamodel) is a visual language for the instructional design of Problem-Based Learning (PBL) situations. This language is a UML profile implemented on top of the Objecteering UML Case tool. In this article, we first present the way we used CPM language to bring about the pedagogical transposition of the planets game learning scenario. Then, we propose some related works conducted to improve CPM usability: on the one hand, we outline a MOF solution and an Eclipse GMF solution instead of the UML profile approach. On the other hand, we propose some explanations about transforming CPM models into LMS compliant data, and tool functionality.Editors: Laurence Vignollet (Université de Savoie, France)