89,917 research outputs found

    Evolving information systems: meeting the ever-changing environment

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    To meet the demands of organizations and their ever-changing environment, information systems are required which are able to evolve to the same extent as organizations do. Such a system has to support changes in all time-and application-dependent aspects. In this paper, requirements and a conceptual framework for evolving information systems are presented. This framework includes an architecture for such systems and a revision of the traditional notion of update. Based on this evolutionary notion of update (recording, correction and forgetting) a state transition-oriented model on three levels of abstraction (event level, recording level, correction level) is introduced. Examples are provided to illustrate the conceptual framework for evolving information systems

    An MPEG-7 scheme for semantic content modelling and filtering of digital video

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    Abstract Part 5 of the MPEG-7 standard specifies Multimedia Description Schemes (MDS); that is, the format multimedia content models should conform to in order to ensure interoperability across multiple platforms and applications. However, the standard does not specify how the content or the associated model may be filtered. This paper proposes an MPEG-7 scheme which can be deployed for digital video content modelling and filtering. The proposed scheme, COSMOS-7, produces rich and multi-faceted semantic content models and supports a content-based filtering approach that only analyses content relating directly to the preferred content requirements of the user. We present details of the scheme, front-end systems used for content modelling and filtering and experiences with a number of users

    DEVELOPMENT OF AN INTEGRATED ACCOUNTING SYSTEM BY RESOURCE-EVENT-AGENT APPROACH (A CASE STUDY AT KOPERASI PEGAWAI DANA PENSIUN TELKOM)

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    Koperasi Pegawai Dana Pensiun Telkom is a cooperative organization that is established by PT. Dana Pensiun Telkom. As a common business entity, financial report is required to give information to the shareholders or decision maker about organization’s financial state. Decision maker in this case is the board of directors. Based on this financial report, board of directors may decide the organization’s strategies. Financial report which has an important role in decision making process has a problem on its publishing time. This delayed financial report’s publishing time makes decision making process become hampered. This problem is caused by three factors, such as disintegrated data and application, and transaction journalizing process which is still using manual method. Resource-Event-Agent approach’s role on this research is to facilitate the modelling data process so that the data and application integration become more effective. The modelled data using Resource-Event-Agent can fulfil organization business process requirements especially for automating the transaction journalizing process. By using Resource-Event-Agent, the system that can be a solution is Integrated Accounting System. This system will integrate data, application, and automating the transaction journalizing process. On the future, Resource-Event-Agent can be used to model every data on every business activities on the organizatio

    Ontology modelling methodology for temporal and interdependent applications

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    The increasing adoption of Semantic Web technology by several classes of applications in recent years, has made ontology engineering a crucial part of application development. Nowadays, the abundant accessibility of interdependent information from multiple resources and representing various fields such as health, transport, and banking etc., further evidence the growing need for utilising ontology for the development of Web applications. While there have been several advances in the adoption of the ontology for application development, less emphasis is being made on the modelling methodologies for representing modern-day application that are characterised by the temporal nature of the data they process, which is captured from multiple sources. Taking into account the benefits of a methodology in the system development, we propose a novel methodology for modelling ontologies representing Context-Aware Temporal and Interdependent Systems (CATIS). CATIS is an ontology development methodology for modelling temporal interdependent applications in order to achieve the desired results when modelling sophisticated applications with temporal and inter dependent attributes to suit today's application requirements

    Tele-education Process Modelling supported by the ODP Enterprise Viewpoint Language

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    This paper reports on applying the ODP enterprise viewpoint in the domain of tele-education. The work is conducted as part of a research activity that aims at designing a tele-education system to support planning, execution and evaluation of dynamic distributed educational processes. We explore the ODP enterprise viewpoint as a basis for communication and co-operation between educational scientists and ODP systems designers involved in the design process. Our application of the enterprise viewpoint involves four main steps. First, an educational language is proposed to describe educational processes in generic terms. Second, a set of appropriate enterprise language concepts is selected. Third, a relationship is established between the educational language and enterprise language concepts. Fourth, an educational process is modelled in terms of an entity-oriented model and a behaviour-oriented model. It is hoped that the experience gained in this exercise will provide useful feedback to both the educational and ODP communitie

    A design model for Open Distributed Processing systems

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    This paper proposes design concepts that allow the conception, understanding and development of complex technical structures for open distributed systems. The proposed concepts are related to, and partially motivated by, the present work on Open Distributed Processing (ODP). As opposed to the current ODP approach, the concepts are aimed at supporting a design trajectory with several, related abstraction levels. Simple examples are used to illustrate the proposed concepts
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