Managing Knowledgeware Expressions

	This task explains how to create or edit expressions used in reports. Expressions are user-defined computer attributes that are added to report definitions.
	You use the `Knowledgeware` `Expression` dialog box to gather the information needed to create an expression.
	1.	From the menu bar, select `Tools - Report - Report Expressions`. The `Knowledgeware` `Expression` dialog box displays.
	2.	To create a Knowledgeware expression: Select `New` from the `Expression` `Name` drop-down list. The `Reporter` `Expression` `Editor` dialog box displays.
	3.	Create the expression according to Knowledgeware format guidelines. For `Signature of the Edited Expression`: Include only one input of type Product, Part or Feature. Include only one output of type String, Real or Integer. Click `OK` when you are done. NOTE: Make sure you follow Knowledgeware format guidelines, If not, a message informs you that you cannot save the expression.
	4.	Click `Save` `As` on the `Knowledgeware` `Expression` dialog box to save the new Knowledgeware expression. The name you enter to save the file also serves as the expression name. You must save expressions in a PRM-defined directory. If you attempt to save an expression in a non-PRM directory, a message alerts you of the error.
	You can use these expressions when defining a report format on the `Report Definition` dialog box. Expressions selected from the `Expression` drop-down list are added to a report definition template. Use expressions as you use attributes. All fields, such as `Sort`, `Group By` and `Sum`, apply to expressions the same way they apply to attributes. See Defining the Report Format for more information.
	5.	To edit a Knowledgeware expression: Use the `Knowledgeware` `Expression` dialog box to select an expression from the `Expression` `Name` drop-down list. Click the `Edit` button. The `Reporter` `Expression` `Editor` displays. Make the necessary edits on the `Reporter` `Expression` `Editor` dialog box. Click `OK` when you are done. NOTE: Make sure you follow Knowledgeware format guidelines, If not, a message informs you that you cannot save the expression.
	6.	Click `Save` `As` on the `Knowledgeware` `Expression` dialog box to save the edited Knowledgeware expression.