218 research outputs found

    The Specification of a Reference Implementation for the Unified Modelling Language

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    Syntax Semantics Denotational Mapping Figure 2: Profile semantics 3.1 Meta-modelling sub-language An essential component of the proposed architecture is a meta-modelling sublanguage. This is used to characterise all aspects of a profile and the kernel library. It provides all the facilities necessary to write profiles, including: simple class diagrams, a simple constraint language, packages (to represent models), an enhanced version of package imports, and a notion of package realisation. Like any other profile, the meta-modelling sub-language imports a number of concepts from the kernel library (see figure 3). StaticBasics (from KernelLibrary) Constraint Basics (from KernelLibrary) Meta-Modelling Sub-Language ModelManagement Basics (from KernelLibrary) Figure 3: The meta-modelling sub-language package As an example, figure 4 shows some of the classes that might belong to 6 the abstract syntax of the sub-language. These deal with two fundamental static modelling con..

    Evaluating the Mentor-Mentee Relationship in the 4-H Tech Wizards Program

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    Youth rely on mentors to provide camaraderie, encouragement, and guidance. The authors asserted that the measurement of youth-mentor relationship would vastly improve the reaching effects of mentorship and expose areas of potential improvement. A questionnaire was given to youth at the beginning and end of a small group mentoring program. The Mentor-Youth Inventory survey exposed levels of emotional engagement, revealed satisfaction levels, and uncovered the breadth of relationships within the program. The study provides evidence that measuring and establishing a benchmark for the quality of youth-mentor relationships facilitates the opportunity to increase the value of small group mentoring in Extension

    A feasibility study in rearchitecting UML as a family of languages using a precise OO meta-modeling approach.

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    This report describes a feasibility study in rearchitecting UML. It develops a theory of precise OO meta-modeling in order to fulfil this task, and checks the feasibility of that theory by developing the meta-model of various aspects of UML
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