Creating a Decision Table 
You create a Decision Table to capture structurally similar rules in a tabular format.
Procedure
Locate the ruleset (Where is my ruleset?) and in the context menu of the ruleset node, choose New Decision Table.
You can also choose the Add New Decision Table icon in the Outline view to create decision tables.
NoteIf you do not see the Outline view, choose
Window 
Show View Other 
.In the dialog box that appears, expand the General node and choose Outline. Choose OK.
End of the note.In the Decision Table Creation Wizard that appears, enter a name in the Decision Table Name field and optionally enter a description in the Comments field. Choose Next.
On the Select the Conditions screen, choose the aliases in the Available Conditions section and choose the Select Conditions button or double-click the aliases.
The aliases appear in the Selected Conditions section. Choose Next.
On the Select the Actions screen, choose the aliases in the Available Actions section and choose the Select Actions button or double-click the aliases.
The aliases appear in the Selected Actions section. Choose Finish.
NoteIn the Select the Conditions and Select the Actions screens, select the aliases and choose the Deselect Conditions and Deselect Actions buttons to remove the aliases from the Selected Actions and Selected Conditions sections in the respective screens.
End of the note.Save the changes.
In the Outline view, a decision table node appears and the decision table editor appears.
NoteIf you have more than one decision table, choose each decision table node to view it in the editor. You can view only one decision table at a time in the editor.
In the Outline view, in the context menu of the decision table node there are options to delete and rename a decision table.
End of the note.