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PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 1

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 2

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 3

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 4

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 5

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 6

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 7

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 8

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 9

Process

Data flow

Data store

Externalentity

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 10

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 11

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 12

Context diagram

Level 0 diagram

Level 1 diagram

Level 2 diagram

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 13

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 14

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 15

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 16

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 17

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 18

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 19

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 20

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 21

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 22

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 23

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 24

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 25

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 26

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 27

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 28

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 29

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 30

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 31

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 32

For each DFD: Check each process for: A unique name: action verb phrase; number; description

At least one input data flowAt least one output data flowOutput data flow names usually different thaninput data flow namesBetween 3 and 7 processes per DFD

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 33

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 34

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 35

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 36

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 37

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 38

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 39

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 40

PowerPoint Presentation for Dennis, W ixom, & Roth Systems Analysis and Design, 3rd EditionCopyright 2006 © John Wiley & Sons, Inc. A ll rights reserved.6 - 41