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1. 发明授权

US5019961A Computer apparatus and method for logical modelling 失效
标题翻译：用于逻辑建模的计算机设备和方法
公开(公告)号：US5019961A
公开(公告)日：1991-05-28
申请号：US334080
申请日：1989-04-05
申请人： Mark Addesso , Venkatraman R. Iyer , Robert M. Dunn
发明人： Mark Addesso , Venkatraman R. Iyer , Robert M. Dunn
IPC分类号： G06F17/50 , G06T17/00
CPC分类号： G06T17/00 , G06F17/5022
摘要： A computer based modelling system includes a computer processor and a memory for storing a model database. A set of primitives is stored in the database. An interface coupled to the computer processor enables a user to input, retrieve and manipulate data within the database. A high level user of the modelling system creates a modelling methodology by editing the database to define: (a) modelling objects in terms of the primitives, (b) modes of viewing the modelling objects, and (c) logical relationships between elements of the views and the modelling objects. A system modeler can create models for specific applications by selecting views representative of modelling objects stored in the database, and manipulating the views in accordance with the methodology defined by the system tooler. Invalid manipulations are prohibited. Policies of coordination can be established among a plurality of modeling sessions of one or more low level users. The system database has a recursive structure, whereby a change made to a first object or view will initiate corresponding changes in every other object or view logically related to the first object or view.
摘要翻译：基于计算机的建模系统包括计算机处理器和用于存储模型数据库的存储器。一组原语存储在数据库中。耦合到计算机处理器的接口使得用户能够输入，检索和操纵数据库内的数据。建模系统的高级用户通过编辑数据库创建建模方法，以定义：（a）根据图元对建模对象进行建模，（b）查看建模对象的模式，以及（c）元素之间的逻辑关系视图和建模对象。系统建模者可以通过选择代表存储在数据库中的建模对象的视图，并根据系统工具程序定义的方法操纵视图来为特定应用程序创建模型。禁止无效操作。可以在一个或多个低级用户的多个建模会话之间建立协调策略。系统数据库具有递归结构，由此对第一对象或视图所做的更改将启动与第一个对象或视图逻辑相关的每个其他对象或视图的相应更改。

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