Narratives, flowcharts, diagrams, and oth$-$

er written materials that explain how a sys$-$

documentation

tem works

Written, step$-$by$-$step explanation of sys$-$

tem components and how they interact

narrative description

Pictorially depicts the relationships among

system input, processing, storage, and

output

data flow diagram

Graphical description of how data flows

from a data source through transforma$-$

tion processes to data stores and

flowchart

destinations

A visual way to describe the different steps

or activities in a business process.

document flowchart

Uses a specialized set of input$/$output$,$ pro$-$

cessing, storage, flow, and other symbols

system flowchart