Instantiation Semantics for Message Sequence Charts

G. Padilla, F. Bastani, C. M. D. Oca, Miguel A. Serrano
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Abstract

Message Sequence Charts (MSCs) is a standardized visual notation for expressing requirements in communicating systems. MSCs are commonly used to specify scenarios describing message exchange among entities such as objects, components, systems, etc. A multiplicity is a modeling construct that is used to define constraints in the existential relationships between entities and it is frequently found in static models, such as class or entity diagrams. This paper describes a formal approach for formalizing the combination of MSCs with multiplicities. The formalization is achieved by defining an instantiation partial function that provides a clear interpretation of how to instantiate MSCs with multiplicities. The formalization uses composition operators that are used to formalize inline expressions (a well-known MSCs modeling construct). This formalization is designed to allow integration with the current formal semantics proposed for MSCs
消息序列图的实例化语义
消息序列图(MSCs)是一种标准化的可视化符号,用于表达通信系统中的需求。MSCs通常用于指定描述实体(如对象、组件、系统等)之间消息交换的场景。多重性是一种建模构造,用于定义实体之间存在关系中的约束,它经常出现在静态模型中,例如类或实体图。本文描述了一种形式化MSCs与多样性组合的形式化方法。形式化是通过定义一个实例化部分函数来实现的,该函数提供了如何实例化具有多样性的msc的清晰解释。形式化使用用于形式化内联表达式(一种众所周知的msc建模构造)的组合操作符。这种形式化的目的是允许与当前为msc提出的形式化语义集成
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