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Study on temporal extending for business rules and constraints in information systems

ZhaoJun Yang

Journal of Computer Applications

Abstract （1642）

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Based on Object Constraint Language (OCL) and Event Condition Action (ECA), a temporal extending method was proposed for enterprise business rules and constraints, which used temporal operators and time intervals to refer to history information of temporal objects and temporal properties. The relationship between business objects and ECA rules was also analyzed.

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Study on meta-models in enterprise temporal modeling

ZhaoJun Yang

Journal of Computer Applications

Abstract （1506）

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To support the modeling of time-related information such as historical information, an enterprise temporal modeling was proposed, involving calendar objects, time attribute domain types, and timestamps. With these concepts and their meta-models, model designers can build temporal enterprise models based on the current snapshot models so as to increase the flexibility of models and information systems.

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Model integration of legacy systems based on patterns reusing

ZhaoJun Yang

Journal of Computer Applications

Abstract （1665）

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A new method of using patterns reusing to integrate models of enterprise legacy systems was proposed. The process of legacy systems integration was introduced. A case was used to explain how to use patterns. At last, some practicable solutions for existing problems in model integration of legacy systems were given.