Meta level component-based framework for distributed computing applications

  • A.S-Y. Lai

    Student thesis: Doctoral ThesisDoctor of Philosophy


    Adaptability for distributed object-oriented enterprise frameworks is a critical
    mission for system evolution. Today, building adaptive services is a complex
    task due to lack of adequate framework support in the distributed computing
    environment. In this thesis, we propose a Meta Level Component-Based
    Framework (MELC) which uses distributed computing design patterns as
    components to develop an adaptable pattern-oriented framework for distributed
    computing applications. We describe our novel approach of combining a meta
    architecture with a pattern-oriented framework, resulting in an adaptable
    framework which provides a mechanism to facilitate system evolution.
    The critical nature of distributed technologies requires frameworks to be
    adaptable. Our framework employs a meta architecture. It supports dynamic
    adaptation of feasible design decisions in the framework design space by
    specifying and coordinating meta-objects that represent various aspects within
    the distributed environment. The meta architecture in MELC framework can
    provide the adaptability for system evolution. This approach resolves the
    problem of dynamic adaptation in the framework, which is encountered in most
    distributed applications. The concept of using a meta architecture to produce an
    adaptable pattern-oriented framework for distributed computing applications is
    new and has not previously been explored in research.
    As the framework is adaptable, the proposed architecture of the pattern-oriented
    framework has the abilities to dynamically adapt new design patterns to address
    technical system issues in the domain of distributed computing and they can be
    woven together to shape the framework in future. We show how MELC can be
    used effectively to enable dynamic component integration and to separate
    system functionality from business functionality. We demonstrate how MELC
    provides an adaptable and dynamic run time environment using our system
    configuration and management utility. We also highlight how MELC will impose
    significant adaptability in system evolution through a prototype E-Bookshop
    application to assemble its business functions with distributed computing
    components at the meta level in MELC architecture. Our performance tests show
    that MELC does not entail prohibitive performance tradeoffs. The work to
    develop the MELC framework for distributed computing applications has
    emerged as a promising way to meet current and future challenges in the
    distributed environment.
    Date of AwardApr 2008
    Original languageEnglish
    SupervisorTony Beaumont (Supervisor)


    • component-based software
    • frameworks
    • distributed computing
    • design patterns
    • meta architecture

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