Friday, July 23, 2010

flowcharting

what is a flow chart?
a flow chart is a visual representation of the flow of data through the information processing system.
- decisions that are being made and the process.


Describe the basic flowchart symbols
A variable is a container that stores values.

with a rectangle- one arrow goes in and one comes out.
a diamond- making decisions- one arrow goes in and two come out- though the bottom and side. the text you put in the diamond can only be a yes or no answer or true or false.
the arrow joins another arrow and not the box. no lines coming back to a box and no lines that go diagonally.
always start with a start symbol and end with an end symbol.

With the decision making symbol (diamond) and the process symbol (rectangle), what are the rules for how many lines may enter and leave the symbol.
rectangle- one arrow goes in, one arrow comes out.
diamond- one arrow goes in, two arrows go out.

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