数据流图 meaning in English
bubble chart
data flow chart
data flow diagram
dataflow graph
dataflowchart
dfd
Examples
- It consists of demanding analysis , system structure , data flowing diagram , function module and the application of key techniques , takes and organizes offer parameter and data , uses entity - relation ( e - r ) pattern to design data pattern , selects ms sql server 7 as database , founds database physical structure
说明了基于c s和b s混合结构模式的设计与实现，包括系统的需求分析，系统的解决方案，系统的体系结构、数据流图、功能模块图以及各关键技术的应用。 - The design of the decision support system for rice ecological balanced fertilization keeps to the life - period method of the software engineering , be designed phases , the summary design project of the whole system was brought forward by using the configurable analyses method , during decision support system design and realization , first analyze the flow of rice ecological balanced fertilization , and plot the database stream chart of rice ecological balanced fertilization , then adopt the data stream analysis method to bring forward sub - system function configuration table
水稻生态平衡施肥决策支持系统的设计遵循软件工程的生命周期法，分阶段设计开发，用结构化分析方法提出整个系统概要设计方案。在决策支持系统的设计与实现中，首先分析现行水稻生态平衡施肥的流程之后，绘制了决策支持系统的数据流图，然后采用数据流分析法，提出子系统的功能结构表，最后利用vb6 . 0 、 access2000数据库、多媒体技术等面向对象的编程工具，实现水稻生态平衡施肥决策支持系统的功能。 - According to the modern erp design and actualization ideology and methods , and based on the research of the former erp system , the author designs the thzd - erp , puts forwards the system flow chart . the author detailed designs the project of material , sale , and plan information , the project of product planing control information , furthermore , the author put forward the dfd of most modules . this project is based on the existing management system , but better than the system , it absorbed in the erp ' s base kernel and logic , implement the former erp system
以现代的erp设计和实施思想为指导，经过对太行振动进行需求分析，在原erp系统的基础上制定了新的太行振动erp系统( thzd - erp ) ，摘要一保留了原系统合理有效的部分，改进了不合理部分，并补充设计了原系统不完整的功能模块和单元，给出了系统的流程图，详细设计了围绕物料、销售和计划信息流（供销存）的解决方案和围绕生产计划控制信息流的解决方案，并给出了各模块的数据流图（ dfd ） 。 - The data and the function requirements for this database system are deducted firstly by the analyzing of the data flow fig and the compiling of the data dictionary . then , the local e - r fig and the whole e - r fig are obtained by concept structure design . the database physical design is finally completed by sql server 2000 and the whole structure of the database is built
首先通过分析系统数据流图，编写数据字典，得出数据库系统的数据和功能需求；然后经过概念结构设计得到数据库局部e ? r图和全局e - r图，经过逻辑结构设计将e ? r图转换成关系数据模型；最后采用sqlserver2000作为工具完成了数据库的物理设计并建立了数据库的全部结构。 - A technique addressed the problem of security policy is given in this paper . it provides the possibility for addressing it at the system design stage & is interfaced to existing formal specifications and verification methods . tins paper has also shown how access rights can be derived from a petri net workflow dynamically
不仅用数据流图对其视图模型进行了描述，而且用z浯言实现了模型的公式化方法，解决了协同工作中信息在安全级别不同的用户间的流动问题，本文还提出了一种将工作流管理与访问控制相结合的动态访问控制的petri网建模方法，能够实现访问控制的自动化执行并有效提高系统的管理效率。