要求:招生管理系统
1. 需求分析
(1) 系统功能说明
(2) 模块划分
(3) 系统顶层数据流图
(4) 各模块的数据流图
2. 概念设计
(1) 根据各模块数据流图设计局部E-R图
(2) 集成局部E-R图
3. 逻辑设计
将E-R图转换成关系模式。

解决方案 »

  1.   

     建议到http://prj.csdn.net 发个贴招标,估计 50-2000 元就搞定了
      

  2.   

    5ge 
    ResourceData
    IPAddress 10.70.107.77:5000 DrawGraphGroupNumber 1
    DrawGraphGroup 1 DrawGraphGroup 1 DrawGraphGroup 1 DrawGraphGroup 1 DrawGraphGroup 1
    DrawGraphOrNot 1 DrawGraphOrNot 1 DrawGraphOrNot 1 DrawGraphOrNot 1 DrawGraphOrNot 1
    DataTotalNumber 7 DataTotalNumber 7 DataTotalNumber 7 DataTotalNumber 7 DataTotalNumber 7
    Max 6.1 Max 34.3 Max 436875264 Max 241 Max 59.5
    Min 2.4 Min 34.3 Min 436695040 Min 148.8 Min 29.7
    Average 3.66 Average 34.3 Average 436778130.3 Average 190.43 Average 42.53
    Std.Devation 1.277833 Std.Devation 0 Std.Devation 64404.70972 Std.Devation 33.690884 Std.Devation 10.619748
    Max Of 95% Confidence Interval 4.838935 Max Of 95% Confidence Interval 34.3 Max Of 95% Confidence Interval 436837694.4 Max Of 95% Confidence Interval 221.587292 Max Of 95% Confidence Interval 52.350153
    Min Of 95% Confidence Interval 2.47535 Min Of 95% Confidence Interval 34.3 Min Of 95% Confidence Interval 436718566.2 Min Of 95% Confidence Interval 159.269851 Min Of 95% Confidence Interval 32.70699
    95% Percentile 4.840433 95% Percentile 34.3 95% Percentile 436837769.9 95% Percentile 221.626767 95% Percentile 52.362596
    TestTime % Processor Time TestTime % Committed Bytes In Use TestTime Available Bytes TestTime Page Faults/sec TestTime Cache Faults/sec
    20:07:29 6.1 20:07:29 34.3 20:07:29 436875264 20:07:29 241 20:07:29 59.5
    20:07:34 3.7 20:07:34 34.3 20:07:34 436768768 20:07:34 159.6 20:07:34 47.2
    20:07:39 3.7 20:07:39 34.3 20:07:39 436719616 20:07:39 211.3 20:07:39 34.8
    20:07:44 2.7 20:07:44 34.3 20:07:44 436695040 20:07:44 187.6 20:07:44 51.9
    20:07:49 2.7 20:07:49 34.3 20:07:49 436744192 20:07:49 168.7 20:07:49 29.7
    20:07:54 2.4 20:07:54 34.3 20:07:54 436826112 20:07:54 148.8 20:07:54 37.2
    20:07:59 4.3 20:07:59 34.3 20:07:59 436817920 20:07:59 216 20:07:59 37.4