Arne-Jørgen Berre

The ATHENA Interoperability Framework

In this paper we present results from the ATHENA Integrated Project in defining the ATHENA Interoperability Framework (AIF) for enterprise applications and software systems. The AIF provides a compound framework and associated reference architecture for capturing the research elements and solutions to interoperability issues that address the problem in a holistic way. The AIF also provides an associated methodological framework which describes the approach towards interoperability from the decision to evaluate collaboration until solution maintenance, and the reference guidelines for the adoption of the reference architecture.

Toward standardised model to text transformations

The objective of this work is to assess the qualities of the MOFScript language, which has recently been submitted to the OMG as a proposed model to text transformation language. This is done by identifying requirements for this type of language and evaluating the MOFScript language with regard to these. The language is presented along with a tool implementation and compared with the alternative languages submitted to the OMG Model to Text RFP.

Developing scientific workflows from heterogeneous services

Scientific WorkFlows (SWFs) need to utilize components and applications in order to satisfy the requirements of specific workflow tasks. Technology trends in software development signify a move from component-based to service-oriented approach, therefore SWF will inevitably need appropriate tools to discover and integrate heterogeneous services. In this paper we present the SODIUM platform consisting of a set of languages and tools as well as related middleware, for the development and execution of scientific workflows composed of heterogeneous services.

Towards an Interoperability Framework for Model-Driven Development of Software Systems

This paper presents an interoperability framework for model-driven development of enterprise applications and software systems. The framework provides a foundation for how to apply MDD in software engineering disciplines in order to support the business interoperability needs of an enterprise. The framework introduces reference models for conceptual integration, technical integration and applicative integration of software systems.

Model-driven Service Engineering with SoaML

This chapter presents a model-driven service engineering (MDSE) methodology that uses OMG MDA specifications such as BMM, BPMN and SoaML to identify and specify services within a service-oriented architecture. The methodology takes advantage of business modelling practices and provides a guide to service modelling with SoaML. The presentation is case-driven and illuminated using the telecommunication example. The chapter focuses in particular on the use of the SoaML modelling language as a means for expressing service specifications that are aligned with business models and can be realized in different platform technologies.

SWING: an integrated environment for geospatial semantic web services

Geospatial Web services allow to access and to process Geospatial data. Despite significant standardisation efforts, severe heterogeneity and interoperability problems remain. The SWING environment leverages the Semantic Web Services (SWS) paradigm to address these problems. The environment supports the entire life-cycle of Geospatial SWS. To this end, it integrates a genuine end-user tool, a tool for developers of new Geospatial Web services, a commercial service Catalogue, the Web Service Execution Environment platform (WSMX), as well as an annotation tool. The demonstration includes three usage scenarios of increasing complexity, involving the semantic annotation of a legacy service, the semantic discovery of a Geospatial SWS, as well as the composition of a new Geospatial SWS.

Model Driven Service Interoperability through Use of Semantic Annotations

This paper presents an approach for comparing two architectures for ontology-based semantic annotation for service interoperability, the EMPOWER archi-tecture using platform specific XML-based technologies and the MEMPOWER architecture extending this with platform independent Model Driven Architecture (MDA) based technologies. We will compare the two architectures with respect to pilot requirements and experienced advantages and challenges for model driven systems. The two approaches are being evaluated based on examples from interoperability between ERP-systems in a Buyer/Seller interaction context.

Meta-models, models, and model transformations: towards interoperable agents

Services provide an universal basis for the integration of applications and processes that are distributed among entities, both within an organization and across organizational borders: This paper presents a model-driven approach to design interoperable agents in service-oriented architectures (SOA). The approach provides a foundation for how to incorporate autonomous agents into a SOA using principles of model-driven development (MDD). It presents a metamodel (AgentMM) for a BDI-agent architecture and relates AgentMM to a platform-independent model for SOAs (PIM4SOA). In this paper we mainly concentrate our discussions on the service and process aspects of SOA and how transformations to agent technology would look like. We argue that this mapping allows the design of generic agent systems in the context of SOAs that are executable in an adaptive and flexible manner.

UML-based methodology for distributed systems

This paper describes a methodology based on the ISO Reference Model for Open Distributed Processing (ISO RM ODP) and the UML 1.1 notation. The methodology has been developed in the context of several projects concerned with methodology development: DISGIS, MAGMA and OBOE. ODP provides the overall framework and a foundation for describing distributed systems. UML provides a flexible notation for describing them. The methodology is described in relation with experiences gained and a case from the geographical information systems domain.

Towards best practices in designing for the cloud

The explosion of Cloud computing propaganda has forced many companies to quickly move towards this new technology. Particularly given the current economic climate it seems like a prudent way to dynamically increase and decrease infrastructure at low cost. However, past experience with SOA has taught us that lack of commercial adaption and a proliferation of unusable standards may hinder this technology. Support from IBM and Microsoft for cloud is promising and leads to the need for strong design of cloud based systems to ensure quality and productivity. Issues already identified in Grid Computing and SOA will certainly prove important in the design of cloud based systems Due to the speed of network development due to cloud architectures, an increasing level of importance must be placed on the design to regulate issues such as: instance access control, regulatory issues, development practices, security and practical operational issues. Capturing and discussing best practices on these subjects will contribute to a healthy movement in the right direction for those who will develop the Service Cloud.