Data dictionaryChinese plays an important role in human life, so Chinese online examination system must be developed in the light of shortcomings of the traditional Chinese examinations. Data flow diagram and data dictionary in this paper are the basic work of developing Chinese online examination ...
According to the method, CAD system for tube drawing die was established by using data flow diagram. 利用数据流图建立了系统模型的装配关系; www.chemyq.com 4. Perhaps most importantly, the data flow diagram and the data dictionary document the analyst's understanDing of the system requirements 也...
DFDDiagramme de Flux de Données(French: Data Flow Diagram) DFDDog Fashion Disco(band) DFDDark, Firm and Dry(meat inspection) DFDDenver Fire Department DFDDevelopment Finance Division(Washington, DC) DFDDisplaced Frame Difference DFDDetroit Fire Department ...
adrawing, oftenproducedby acomputer, thatshowshow and in whatorderinformationisdealtwith in asystem: Use adataflowdiagramto show therelationshipsbetween thebusinessprocesseswithin anorganization.(Definition ofdata flow diagramfrom theCambridge Business English Dictionary© Cambridge University Press) ...
data flow diagram[′dad·ə ¦flō ‚dī·ə‚gram] (computer science) A chart that traces the movement of data in a computer system and shows how the data is to be processed, using circles to represent data. Also known as bubble chart; system flowchart. McGraw-Hill Dictionary...
aka cn 正在翻译,请等待... [translate] aUsing the diagram as a tool, the data flows are traced, and the system’s data elements are identified and recorded in a data dictionary. 使用图作为工具,数据流被追踪,并且系统数据元素在数据字典被辨认并且被记录。 [translate] ...
Likewise flow B leaving the child diagram should balance with flow B leaving the parent process. Data decomposition can occur within the data dictionary so flow A into the parent process will balance if flows X and Y enter the child diagram and A = X + Y in the data dictionary. Yourdon/...
What is a data flow diagram? Why do systems analysts use data flow diagrams? Answers: A picture of the movement of data between external entities and the processes and data stores within a system. Systems analysts use DFDs to help in the analysis phase by accomplishing the ...
Specifying actual names of files and printouts: Logical data flow diagrams describes actual filenames and reports, so that the programmers can relate those with the data dictionary during the developmental phase of the system. Adding controls to ensure the processes are done properly: These are con...
Data-Flow Diagram Category: Digital archaeology Definition: A logical model of an information system depicting its entities, processes, and flow of data between processes.