Role-Based Delegation Model mainly solves the centralization and complexity questions of traditional authorization management, and satisfies the requirement of distributed computing environment.
基于角色的委托授权模型旨在解决传统授权管理的集中性和复杂性问题，从而满足分布式计算环境的需求。
After analyzing the requirement of product Lifecycle Management system, this paper proposes a CSCW-based function model of PLM system and analyzes the model of product uniform information platform.
本文在分析了产品生命周期系统的需求之后，提出了协同环境下的产品生命周期管理系统功能模型。分析了产品统一信息平台模型。
Beehive Customer Management System used UML class diagram to build static model, used use case diagram to analyze requirement and used sequence diagram to build dynamic model.
蜂窝客户管理系统利用UM L类图建立了系统静态模型，并对蜂窝定义与划分模块使用用例图进行需求分析和用时序图来完成动态模型的建立。
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