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系统的总体设计 PowerPoint PPT Presentation


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系统的总体设计. 系统设计要求 系统功能结构的划分 系统环境的配置 确定系统的计算机处理流程. 系统设计要求 1 .简明性 2 .灵活性和适应性 3 .完整性 4 .可靠性 5 .安全性 6 .经济性. 系统功能结构的划分 管理信息系统的各子系统可以看作是系统目标下层的功能。对其中每项功能还可以继续分解为第三层、第四层 …… 甚至更多的功能。

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系统的总体设计

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  • OracleSybaseSQL ServerFoxProOracleSybaseSQL ServerMISFoxProMIS


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1 HIPO

  • HIPOHierarchy plus Input/Output

  • HIPOHIPO

  • 1H

  • 5-19

  • 2IPO

  • HIPO


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  • Yourdon

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  • AB5-20


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  • MAB5-21


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  • IPO


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MIS


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  • P1 P2Pn

  • A1A2

  • S= PiAi

    123

    2481632

    235711

n

i=1


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R=S mod (M)RM

R

::1 2 3 4

: 4 3 2 1

: 4+6+6+4=20

11,: 20 mod 11=9

:1 2 3 4 9


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