【系统设计与数据库系统】UML System Design using Microsoft Visio

Alex_Shen
2021-06-03 / 0 评论 / 0 点赞 / 216 阅读 / 1,418 字 / 正在检测是否收录...
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实验目的与要求:(Purpose of Experiment purpose and Requirements)

Design a DFD for a Cash Dispenser (ATM Machine) with the following functions:

  1. “The Cash Dispenser system uses four processes:
    a. Receive-Request
    b. Check-Password,
    c. Withdraw, and
    d. Show-Balance.
  2. Process Receive-Request takes a request for either withdrawing or showing the balance, and sends this request to either process Withdraw or Show-Balance. At the same time, it also sends an instruction to Check-Password to check whether the input card and password are correct.
  3. Check-Password then sends a confirmation to both Show-Balance and Withdraw.
  4. Withdraw: requests an amount from the customer, and outputs the amount of the money if it is within the range of the account balance.
  5. To determine whether the requested amount is small enough to be withdrawn, the system needs to keep the file account that allows all the related processes to access.
  6. Show-Balance: outputs the present balance

Draw : Use Case Diagram by identifying
(1) actors who use the ATM
(2) Functionality of every Actor of the ATM software.
(3) other components which you think is required for ATM and
(4) Functionality of these component of the ATM software.
and the convert it into the following DFD

  • Context Diagram
  • Level0 DFD
  • Level1 DFD
  1. Draw Use Case Diagram for a Blog Website
    Identify the following requirements
    (1) actors who use the Blog software
    (2) Functionality of every Actor of the Blog software.
    (3) components of Blog software and
    (4) Functionality of each component of the Blog software.

实验过程及内容:(Methods and steps)

Draw : Use Case Diagram by identifying

1. Context Diagram

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2. Level0 DFD

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3. Level1 DFD

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2. Draw Use Case Diagram for a Blog Website

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