软件工程数据流图.docx
- 文档编号:4555544
- 上传时间:2022-12-06
- 格式:DOCX
- 页数:7
- 大小:16KB
软件工程数据流图.docx
《软件工程数据流图.docx》由会员分享,可在线阅读,更多相关《软件工程数据流图.docx(7页珍藏版)》请在冰豆网上搜索。
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P1F0.0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S0F2.1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P2F3.0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
developmentinordertoprotectahostofattractionsandhistoricalsites,aswellastomaintaintheeconomicvitalityofthedowntownarea.Figure5.1-5figure5.1.4Washingtonmasstransitnetworktosupportimplementationofeffectivetransportdemandmanagementpoliciestoreduceurbantrafficcongestionandpublictransportprioritywasintheearly1960ofthe20thcenturybytheplannersfirstproposedinParis,France,andinEuropeandothermajorcitiestooperatehasbeentheformationoftherichcontentsystem.Publictransportpriorityconsistsoftwoaspects:
oneisonthebustohelp....5.1-7Parkandridesystems5.1.5typicalcaseHongKong-JapanSapporo,SapporoisaJapanHokkaidocentralpartsofcities,Japan'sfifthlargestcity.Areaof1121km2inthecity,apopulationof1.921million.InadditionistheadministrativecenterofHokkaido,SapporoisHokkaido'sindustrialandcommercialcenter,in1972,hostedthe11thWinterOlympicGames.3JRSappororailtransitline3metroand3tramlines,SapporointheurbandevelopmentprocesscombinedwithCenterofconstructionofsubwayconstructionandresidentialdevelopment,andsupportthedevelopmentoftheregion.Priorto1971,Sapporo,JapanHokkaidolocalCentreintheurbandevelopmentprocess,inresponsetotherapidgrowthofthecitycentretrafficdemand,buildingtrams.1981yearsagoforholdingthewinterOlympicGamesasanopportunitytostartbuildingconnectedtothevenueandthecitycentre
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S0P1.3F2.2.1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
P2.4F3.0.3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
developmentinordertoprotectahostofattractionsandhistoricalsites,aswellastomaintaintheeconomicvitalityofthedowntownarea.Figure5.1-5figure5.1.4Washingtonmasstransitnetworktosupportimplementationofeffectivetransportdemandmanagementpoliciestoreduceurbantrafficcongestionandpublictransportprioritywasintheearly1960ofthe20thcenturybytheplannersfirstproposedinParis,France,andinEuropeandothermajorcitiestooperatehasbeentheformationoftherichcontentsystem.Publictransportpriorityconsistsoftwoaspects:
oneisonthebustohelp....5.1-7Parkandridesystems5.1.5typicalcaseHongKong-JapanSapporo,SapporoisaJapanHokkaidocentralpartsofcities,Japan'sfifthlargestcity.Areaof1121km2inthecity,apopulationof1.921million.InadditionistheadministrativecenterofHokkaido,SapporoisHokkaido'sindustrialandcommercialcenter,in1972,hostedthe11thWinterOlympicGames.3JRSappororailtransitline3metroand3tramlines,SapporointheurbandevelopmentprocesscombinedwithCenterofconstructionofsubwayconstructionandresidentialdevelopment,andsupportthedevelopmentoftheregion.Priorto1971,Sapporo,JapanHokkaidolocalCentreintheurbandevelopmentprocess,inresponsetotherapidgrowthofthecitycentretrafficdemand,buildingtrams.1981yearsagoforholdingthewinterOlympicGamesasanopportunitytostartbuildingconnectedtothevenueandthecitycentre
developmentinordertoprotectahostofattractionsandhistoricalsites,aswellastomaintaintheeconomicvitalityofthedowntownarea.Figure5.1-5figure5.1.4Washingtonmasstransitnetworktosupportimplementationofeffectivetransportdemandmanagementpoliciestoreduceurbantrafficcongestionandpublictransportprioritywasintheearly1960ofthe20thcenturybytheplannersfirstproposedinParis,France,andinEuropeandothermajorcitiestooperatehasbeentheformationoftherichcontentsystem.Publictransportpriorityconsistsoftwoaspects:
oneisonthebustohelp....5.1-7Parkandridesystems5.1.5typicalcaseHongKong-JapanSapporo,SapporoisaJapanHokkaidocentralpartsofcities,Japan'sfifthlargestcity.Areaof1121km2inthecity,apopulationof1.921million.InadditionistheadministrativecenterofHokkaido,SapporoisHokkaido'sindustrialandcommercialcenter,in1972,hostedthe11thWinterOlympicGames.3JRSappororailtransitline3metroand3tramlines,SapporointheurbandevelopmentprocesscombinedwithCenterofconstructionofsubwayconstructionandresidentialdevelopment,andsupportthedevelopmentoftheregion.Priorto1971,Sapporo,JapanHokkaidolocalCentreintheurbandevelopmentprocess,inresponsetotherapidgrowthofthecitycentretrafficdemand,buildingtrams.1981yearsagoforholdingthewinterOlympicGamesasanopportunitytostartbuildingconnectedtothevenueandthecitycentre
数据结构编号:
D1
数据结构名称:
学生基本信息存储别名:
学生信息存储
描述:
简述学生的个人基本信息,包括学号,姓名
数据结构编号:
D2
数据结构名称:
学生成绩存储
别名:
学生成绩
描述:
简述学生的成绩,包括学生基本信息,学生平时成绩,期末
成绩,总成绩和备注信息
数据流编号:
F2.1.0
数据流名称:
输入学生基本信息存储
简述:
学生基本信息输入
数据流来源:
教师
数据流去向:
学生基本信息存储文件数据组成:
学生姓名+学生学号
数据项编号:
I1
数据项名称:
学生学号
别名:
学生编号
简述:
定义唯一学生标识信息—学号类型及宽度:
字符型,12位
developmentinordertoprotectahostofattractionsandhistoricalsites,aswellastomaintaintheeconomicvitalityofthedowntownarea.Figure5.1-5figure5.1.4Washingtonmasstransitnetworktosupportimplementationofeffectivetransportdemandmanagementpoliciestoreduceurbantrafficcongestionandpublictransportprioritywasintheearly1960ofthe20thcenturybytheplannersfirstproposedinParis,France,andinEuropeandothermajorcitiestooperatehasbeentheformationoftherichcontentsystem.Publictransportpriorityconsistsoftwoaspects:
oneisonthebustohelp....5.1-7Parkandridesystems5.1.5typicalcaseHongKong-JapanSapporo,SapporoisaJapanHokkaidocentralpartsofcities,Japan'sfifthlargestcity.Areaof1121km2inthecity,apopulationof1.921million.InadditionistheadministrativecenterofHokkaido,SapporoisHokkaido'sindustrialandcommercialcenter,in1972,hostedthe11thWinterOlympicGames.3JRSappororailtransitline3metroand3tramlines,SapporointheurbandevelopmentprocesscombinedwithCenterofconstructionofsubwayconstructionandresidentialdevelopment,andsupportthedevelopmentoftheregion.Priorto1971,Sapporo,JapanHokkaidolocalCentreintheurbandevelopmentprocess,inresponsetotherapidgrowthofthecitycentretrafficdemand,buildingtrams.1981yearsagoforholdingthewinterOlympicGamesasanopportunitytostartbuildingconnectedtothevenueandthecitycentre
数据项编号:
I2
数据项名称:
学生姓名
别名:
姓名
简述:
学生个人姓名信息类型及宽度:
字符型,8位
数据流编号:
F2.2.0
数据流名称:
学生成绩存储
简述:
学生成绩
数据流来源:
教师
数据流去向:
学生成绩存储数据组成:
:
平时成绩+期末成绩
数据项编号:
I3
数据项名称:
学生平时成绩别名:
平时成绩
简述:
学生有一个平时成绩,可根据平时成绩所占百分比求总评
成绩
类型及宽度:
浮点型,4位
数据项编号:
I4
数据项名称:
学生期末成绩别名:
期末成绩
简述:
学生有一个期末成绩即试卷分,可根据期末成绩所占百分
比求总评成绩
类型及宽度:
浮点型,4位
developmentinordertoprotectahostofattractionsandhistoricalsites,aswellastomaintaintheeconomicvitalityofthedowntownarea.Figure5.1-5figure5.1.4Washingtonmasstransitnetworktosupportimplementationofeffectivetransportdemandmanagementpoliciestoreduceurbantrafficcongestionandpublictransportprioritywasintheearly1960ofthe20thcenturybytheplannersfirstproposedinParis,France,andinEuropeandothermajorcitiestooperatehasbeentheformationoftherichcontentsystem.Publictransportpriorityconsistsoftwoaspects:
oneisonthebustohelp....5.1-7Parkandridesystems5.1.5typicalcaseHongKong-JapanSapporo,SapporoisaJapanHokkaidocentralpartsofcities,Japan'sfifthlargestcity.Areaof1121km2inthecity,apopulationof1.921million.InadditionistheadministrativecenterofHokkaido,SapporoisHokkaido'sindustrialandcommercialcenter,in1972,hostedthe11thWinterOlympicGames.3JRSappororailtransitline3metroand3tramlines,SapporointheurbandevelopmentprocesscombinedwithCenterofconstructionofsubwayconstructionandresidentialdevelopment,andsupportthedevelopmentoftheregion.Priorto1971,Sapporo,JapanHokkaidolocalCentreintheurbandevelopmentprocess,inresponsetotherapidgrowthofthecitycentretrafficdemand,buildingtrams.1981yearsagoforholdingthewinterOlympicGamesasanopportunitytostartbuildingconnectedtothevenueandthecitycentre
数据流编号:
F2.2.1
数据流名称:
汇总后成绩存储
简述:
根据平时成绩和期末成绩以及百分比汇总数据流来源:
教师
数据流去向:
学生成绩存储
数据组成:
:
平时成绩百分比+期末成绩百分比
数据组成:
学号+姓名+平时成绩+期末成绩
数据项编号:
I5
数据项名称:
学生平时成绩百分比
别名:
平时成绩百分比
简述:
学生有一个平时成绩百分比,可根据百分比求总评成绩类型及宽度:
浮点型,4位
数据项编号:
I6
数据项名称:
学生期末成绩百分比
别名:
期末成绩百分比
简述:
学生有一个期末成绩百分比,可根据百分比求总评成绩类型及宽度:
浮点型,4位
developmentinordertoprotectahostofattractionsandhistoricalsites,aswellastomaintaintheeconomicvitalityofthedowntownarea.Figure5.1-5figure5.1.4Washingtonmasstransitnetworktosupportimplementationofeffectivetransportdemandmanagementpoliciestoreduceurbantrafficcongestionandpublictransportprioritywasintheearly1960ofthe20thcenturybytheplannersfirstproposedinParis,France,andinEuropeandothermajorcitiestooperatehasbeentheformationoftherichcontentsystem.Publictransportpriorityconsistsoftwoaspects:
oneisonthebustohelp....5.1-7Parkandridesystems5.1.5typicalcaseHongKong-JapanSapporo,SapporoisaJapanHokkaidocentralpartsofcities,Japan'sfifthlargestcity.Areaof1121km2inthecity,apopulationof1.9
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 软件工程 数据流