VCE IT Lecture Notes by Mark Kelly, McKinnon Secondary College
Back to the IT Lecture Notes index

Flowcharts

 

Flow charts show the sequence of events involved in a process. They are good for documenting ("representing") processes, not how products look or what they contain.

There are standard shapes for different types of operation, such as actions, decisions, storage etc. Their size can tend to get out of control when representing complex operations, so the NS chart was created as a more compact and powerful alternative.

flowchart

 

Drawing flowcharts in Word

Turn on the drawing toolbar (View > Toolbars > Drawing). Click on Autoshapes. Click on Flowchart and select a symbol.

To add text to a symbol, right-click on the symbol and choose Add Text.

To easily add connectors between symbols, click Autoshapes > Connectors. Choose the arrowed connector (the second one in the pop-up menu). As you move the mouse over the symbol to connect from, tiny blue squares appear show the joining points. Click on one of them. Then move your mouse to the symbol you want to connect to, select a blue dot and click. The arrow connector will appear.between the symbols and stay stuck there if you move the symbols later.

To move symbols around, click one and use the arrow keys to slide it around. Press CTRL+arrow to move it a pixel at a time. Draw a marquee (box) around a group of symbols, then use the arrow/CTRL+arrow keys to move them as a bunch.

 

COMMON FLOWCHART SYMBOLS

Terminator - Marks the beginning or ending of a flowchart

Process - A task that needs to be done

 

 

Decision - also known as an "IF" statement. e.g. Is the income over the tax limit? These symbols have YES and NO branches depending on the answer to the decision.

Input/output.

 

Where data should be stored on disk

Here are some other symbols

Direct Access Storage - another term for "random access" (e.g. hard disk) storage (as opposed to "sequential access" (e.g. tape)
A set of actions defined elsewhere in another flowchart (e.g. "make coffee")
A delay in a process, waiting for something else to happen
Display
Document
Internal storage
Manual input
Manual operation
Merge
Or
Preparation
Sequential Access Storage (save to tape)
Sort
Stored data
Summing Function
flowchart collate
Collate
flowchart connector
Connector

Sample flowchart from the US FDA

And here's a flowchart used as a decision tree

A sample greenhouse control flowchart

greenhouse flowchart

Back to the IT Lecture Notes index

Last changed: February 18, 2011 9:18 AM

VCE IT Lecture notes copyright © Mark Kelly 2001-