ITEM TOOLKIT

Chapter 8 Fault Tree 201
The Canvas Toolbar
The Canvas Toolbar contains commands that affect the appearance and behavior of the canvas.
Tool Name Description
Undo
Redo
Toggle Grid
Snap to Grid
Toggle Page Bounds
Undo the last command executed on the canvas.
Redo the last undo that was performed.
Turn display of the grid on and off.
Toggle the snap-to-grid feature on and off.
Turn display of page boundaries on and off.
The Graph Toolbar
The Graph Toolbar contains commands that affect the appearance and behavior of the Fault Tree diagram. Each selection
highlights the way that gates and events are connected through the Fault Tree.
Tool Name Description
Edges
Click on the gate you wish to select on the Fault Tree, and then click on this symbol to
display the connection line to the other figures the selected gate is connected to. The
connection line will flash repeatedly on the screen.
Edges Leaving
Click on the gate you wish to select on the Fault Tree, and then click on this symbol to
display the connection line that is leaving the selected figure and connecting to the next
set of connected gates and events. The connection line will flash repeatedly on the screen.
Edges Entering
Click on the gate you wish to select on the Fault Tree, and then click on this symbol to
display the connection line that the selected gate is entering from the gate above it. The
connection line from the gate on the next level up on the Fault Tree will flash repeatedly
on the screen.
Nodes
Connected From
Nodes
Connected To
Nodes
Connected
Click on this symbol to display the connection line from the first node to the second node.
The connection line from the first figure to the second figure will flash repeatedly on the
screen.
Click on this symbol to display the gate that all nodes are connected to. The gate will
flash repeatedly on the screen. This gate is usually the gate directly below the Top Gate in
the Fault Tree.
Click on this symbol to display all nodes that are logically connected within the Fault
Tree. Node gate symbols will flash on the screen in order for you to discern which nodes
are connected.