面向普适计算应用的模型分析与设计语言研究

RESEARCH ON PERVASIVE COMPUTING APPLICATION-ORIENTED MODEL ANALYSIS AND DESIGN LANGUAGE

传统的建模方法主要面向具体的计算环境和设备,其接口、执行上下文和实施行为的方式都是可以预测的,难以准确刻画普适计算应用的不确定性自适应行为。针对此种情况,提出一种普适计算应用模型及设计语言。它将计算应用解构为相互联系的四元素,并通过定义元素内部执行和外部交互语义,支持搭建具备分布、上下文感知与自适应执行特性的普适计算应用。以智能导航应用为例给出基于四元素的应用描述。案列结果说明该应用模型能够帮助设计人员快速刻画操作对象和交互实体的物理属性和行为语义,支持对应用逻辑的高效设计。

Traditional modelling method is mainly for specific computation environment and devices, its interface, execution context and the means of implementation behaviours are all predictable, the self-adaptive behaviour of uncertainty in regard to pervasive computing applications is hard to be accurately characterised. In light of such situation, we present a pervasive computing applications model and design language. It deconstructs the computing application into four elements with mutual association, and supports the construction of pervasive computing applications with the characteristics of distribution, context-aware and adaptive execution by defining internal execution and external interactive semantics of elements. The four elements-based application description is presented using the intelligent navigation as the example. Results of the case list shows that the application model can help designers to quickly characterise the operational objects and the physical properties and behaviour semantics of the interactive entities, supports efficient design of applied logic.