用Smartdraw画数据流图

用Smartdraw画数据流图

This preview shows page 1 - 3 out of 5 pages.

用 Smartdraw 用用用用用 What are Data Flow Diagrams? Data flow diagrams illustrate how data is processed by a system in terms of inputs and outputs. A data flow diagram Data Flow Diagram Notations You can use two different types of notations on your data flow diagrams: Yourdon & Coad or Gane & Sarson . Process Notations Yourdon and Coad Process Notations Process A process transforms incoming data flow into outgoing data flow. Learn how to edit text on this object. Gane and Sarson Process Notation
Image of page 1

Subscribe to view the full document.

Datastore Notations Yourdon and Coad Datastore Notations DataStore Datastores are repositories of data in the system. They are sometimes also referred to as files. Learn how to edit text on this object. Gane and Sarson Datastore Notations Dataflow Notations Dataflow Dataflows are pipelines through which packets of information flow.
Image of page 2
Image of page 3
  • Spring '12
  • Vijiay
  • Yourdon

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern