软件工程数据流图

软件工程数据流图

F2学生信息 F0学生信息及P 存储 S0 成绩录入文件存储 D0 学生单科 F1

学生单科成成绩管理教师 F3根据存储分绩输出及评估系统析输出图1 学生单科成绩管理顶层数据流图

F2.0导入 P1 F0.0学生信学生信息息及成绩输D1 学生基本信息存储学生信

息入 S0 F2.1输入及成绩输

学生信息存储入管理 F2.2学生

成绩存储教师 F1.0成绩信

息反馈 P2 F3.0成

绩数据 D2 成绩存储单科成绩

输出及分

析

图2 学生单科成绩管理第一层数据流图

development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. Figure 5.1-5 figure 5.1.4 Washington mass transit network to support implementation of effective transport demand management policies to reduce urban traffic congestion and public transport priority was in the early 1960 of the 20th century by the planners first proposed in Paris, France, and in Europe and other major cities to operate has been the formation of the rich content system. Public transport priority consists of two aspects: one is on the bus to help. ... 5.1-7 Park and ride systems 5.1.5 typical case Hong Kong-Japan Sapporo, Sapporo is a Japan

Hokkaido central parts of cities, Japan's fifth largest city. Area of 1121km2 in the city, a population of 1.921 million. In addition is the administrative center of Hokkaido, Sapporo is Hokkaido's industrial and commercial center, in 1972, hosted the 11th Winter Olympic Games. 3 JR Sapporo rail transit line 3 metro and 3 tram lines, Sapporo in the urban development process combined with Center of construction of subway construction and residential development, and support the development of the region. Prior to 1971, Sapporo, Japan Hokkaido local Centre in the urban development process, in response to the rapid growth of the city centre traffic demand, building trams. 1981 years ago for holding the winter Olympic Games as an opportunity to start building connected to the venue and the city centre

F2.0.0导入学生基

P1.1 本信息

D1 学生基本信息学生信息F2.1.0输 F0.0.0 存储录入学生基入学生

本信息基本信息存储录入 F0.0.1学生F2.1.1学生信息成绩录入 P1.2 F2.2.0成绩存储成绩录入

F0.0.2成

绩百分比 S0 P1.3 F2.2.1汇总后F1.0.0成学生成绩成绩存储教师绩打汇

总

印

F3.0.0获得文件P2.1

中学生成绩成绩打印F1.0.1总成D2 学生成绩存储输出绩分析汇

总 F3.0.1根据

总成绩进P2.2

行分析总成绩分

析

F1.0.2试卷F3.0.2试卷分析分析输出 P2.3

试卷分析

F1.0.3成绩转出

P2.4 F3.0.3根据成绩存储转出成绩转出

图3 学生单科成绩管理系统第二层数据流图

development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. Figure 5.1-5 figure 5.1.4 Washington mass transit network to support implementation of effective transport demand management policies to reduce urban traffic congestion and public transport priority was in the early 1960 of the 20th century by the planners first proposed in Paris, France, and in Europe and other major cities to operate has been the formation of the rich content system. Public transport priority consists of two aspects: one is on the bus to help. ... 5.1-7 Park and ride systems 5.1.5 typical case Hong Kong-Japan Sapporo, Sapporo is a Japan Hokkaido central parts of cities, Japan's fifth largest city. Area of 1121km2 in the city, a population of 1.921 million. In addition is the administrative center of Hokkaido, Sapporo is Hokkaido's industrial and commercial center, in 1972, hosted the 11th Winter Olympic Games. 3 JR Sapporo rail transit line 3 metro and 3 tram lines, Sapporo in the urban development process combined with Center of construction of subway